Đề thi thử THPT quốc gia môn Hóa học số 8

>> Truy cp  hc hóa t 1/22


Câu 1 : Sn phc khi thng axit là?
A .Axit axetic và ancol vinylic. B . xit axetat và ancol vinylic.
C Axit axetic và ancol etylic. D. 
Câu 2 : 
A 
B . 
C .
D . 
Câu 3 : Cho các polim        
-

A . (1),(2),(5);(4) B . (2),(3),(6).
C . (2),(5),(6). D (1),(4),(5),(3)
Câu 4:  Au    1,44. 10^-10 và 197g/mol.
 Au là  Au 

A . 25% B . 68%). C . 76% D. 74%
Câu 5: 
4
và MnO
2


2

2



A . 52,4%. B . 26,9 % C .45,2% D. 21,59%.
Câu 6 : 
A . Ag
+
, Fe
2+
, NO
3
-
, SO
4
2-
B . Fe
2+
, NO
3
-
, Cl
-
, H
+
C . Ba
2+
, Na
+
, HSO
4
-
, OH

-
D. Cu
2+
, Fe
3+
, SO
4
2-
, NO
3
-
ĐỀ THI THỬ THPT QUỐC GIA NĂM 2015
TRƯỜNG: THPT HÀN THUYÊN


>> Truy cp  hc hóa t 2/22
Câu 7 : 
2
SO
4

A . NH
3

B . NH
3

C . HCl H
2
S

D. NaBr
Câu 8 : -1,3--1-
2


2


A . 8,3 gam B . 7,0 gam C . 7,3 gam D. 10,4 gam

Câu 9 : 
trong d
A . 6 B . 4 C . 5 D. 3
Câu 10 : 
AgNO
3
trong NH
3

A . 37,5% B . 42,5% C . 40% D. 40%
Câu 11 : 
A 
3
và H
2
SO
4
loãng
B . 

2

2
C . 
3
)
2
D. 
2
S vào du
2

Câu 12 : 
A . NaCl, CaO, NH
4
Cl B . AlCl
3
, HCl, NaOH.
C . KNO
3
, NaF, H
2
O. D . HNO
3
, CaCl
2
, NH
4
Cl
Câu 13 : 

6
H
5
- 
ph
A  B . H
2
(xt: Ni, t
0
)
C . Br
2
 D . 
2
SO
4

Câu 14 : 
3
và PBr
3


3
trong X là?

>> Truy cp  hc hóa t 3/22
A . 12,152% B . 30,31% C . 8,08% D . 26,96%
Câu 15 : 


A . Andehit fomic B. ancol metylic C . Andehit axetic D . ancol etylic
Câu 16 : 
 

2
trong CCl
4

A . 84,8 gam B. 56 gam C . 44,8 gam D . 37,5 gam
Câu 17 : 
A . phân lân B. vôi C . NH
4
NO
3
D phân kali
Câu 18: 

2

2
O. Xà phóng hóa m gam X
(H=90%) 
A . 0,828 gam B. 1,656 gam C . 0,92 gam D 2,484 gam
Câu 19 : 
2
, Na
2
SO
3
, S, NaCl, FeCl

2
, FeBr
3
và Fe
3
O
4

H
2
SO
4
- 
A . 4 B. 6 C .7 D 5
Câu 20: ClO
3
, Ca(ClO
2
)
2
,Ca(ClO
3
)
2


2

K
2

CO
3


3
có trong A là?
A . 54,67% B. 56,72% C . 58,55% D 47,83%
Câu 21: 
H
2
N-CH
2
-CO-NH-CHCO(CH
2
COOH)-NH-CH(CH
2
-C
6
H
5
) CO-NH- CH(CH
3
)- COOH

A .5 B. 3 C . 4 D 2
Câu 22: 
monosaccarit là

>> Truy cp  hc hóa t 4/22
A .3 B. 1 C . 2 D. 4

Câu 23: 
2
NCH
2
COONa và H
2
NCH
2
CH
2


2
SO
4

2
NCH
2

thành là?
A . 37,9 gam B. 29,25 gam C . 18,6 gam D. 12,4 gam
Câu 24:  


1,0 



A . 22,78% B. 44,24% C . 40,82% D. 35,52%

Câu 25 :  
axit amino axetic, o-xilen, phenylamoni clorua. 
nóng là?
A . 6 B. 4 C . 3 D. 5
Câu 26 : 

2
SO
4


A . 34,20%. B. 26,83%. C . 42,60%. D. 53,62%.
Câu 27 : 


A . H
2
NCH
2
COOH và CH
3
OH B. H
2
NC
2
H
4
COOH và C
2
H

5
OH
C . H
2
NC
2
H
4
COOH và CH
3
OH D. H
2
NCH
2
COOH và C
2
H
5
OH
Câu 28 : 

A . 300 ml B. 2 00 ml C . 150 ml D. 250 ml
Câu 29 :  


>> Truy cp  hc hóa t 5/22
A  B.  C . 1, D. 
Câu 30 : 
A . Anilin, metylamin, amoniac.
B. Etylamin, anilin, amoniac.

C . Anilin, amoniac, metylamin.
D. Amoniac, etylamin, anilin.
Câu 31 : Cho m gam 
4
C
3
và CaC
2



4
C
3
và CaC
2

A . 2:1 B. 1:2 C . 1:1 D. 1:3
Câu 32 : 
9
H
8

     
3
trong NH
3

 
A 

B. 
C . 
D. 
Câu 33 : 
2n+1


(I) 
(II) 
(III) 
(IV) 
3


A . 4 B. 2 C . 1 D. 3

>> Truy cp  hc hóa t 6/22
Câu 34 : 
HCHO, CH
3
CHO, CH
3
OCH
3
là?
A .1 B. 4 C . 2 D. 3
Câu 35 : 

A . Na và K. B. Rb và Cs C . Li và Na. D. K và Rb
Câu 36 : 

A 
B. 
C . 
D. 
Câu 37 : 
3

0
C

A . 0,09% B. 1,26% C . 2,5% D. 0,126%
Câu 38: 
8
H
10


A . 5 B. 6 C .3 D. 4
Câu 39 : it là?
A . NH
4
H
2
PO
4
B. CaHPO
4
C . Ca
3
(PO

4
)
2
D. Ca(H
2
PO
4
)
2

Câu 40 : 
3
và K
2
CO
3


2

là?
A . 29,55 B. 30,14 m 29,55

C . 35,46 m > 29,55 D. 35,46
Câu 41 : 


A . 1:3 B. 1:2 C . 2:1 D. 3:1

>> Truy cp  hc hóa t 7/22

Câu 42 :  
nhóm -CO-NH- 
X
: n
Y

 
A . 14,46 và tetrapeptit B. 14,61và tripeptit
C . 14,46 và tripeptit D. 14,61 và tetrapeptit
Câu 43 : 


A . 0,5M B. 1,376 M C . 0,125 M D. 0,875 M
Câu 44 : 


A . 58,8 % B. 48 % C . 24,6 % D. 22 %
Câu 45 : 
3
và MBr
2

3

 
3
trong X là?
A . 41,77 % B. 60,71 % C . 51,63% D. 91,64 %
Câu 46 : 
2

và H
2



A . 14,28 lít B. 11,2 lít C . 8,4 lít D. 16,8 lít
Câu 47 : 
clorua vôi (CaOCl
2

A . KOH B. NaOH C . Ca(OH)
2
. D. Ba(OH)
2
.
Câu 48 : 

3
trong NH
3


A . 55,5% B. 50% C . 72,5% D. 45%
Câu 49 : 

>> Truy cp  hc hóa t 8/22
A . NH
3
, HCl, CO
2

, SO
2
, Cl
2
B. NH
3
, O
2
, N
2
, HCl, CO
2
C . H
2
, N
2
, O
2
, CO
2
, HCl, H
2
S
D. O
2
, N
2
, H
2
, CO

2
, CH
4

Câu 50 : 


2



A . 34,51 gam

B. 22,6 gam.

C . 34,3 gam

D. 40,6 gam.

>> Truy cp  hc hóa t 9/22
LỜI GIẢI CHI TIẾT ĐỀ THI THỬ THPT QUỐC GIA 2015
TRƯỜNG: THPT HÀN THUYÊN

Câu 1: c CH3COOCHCH2


Câu 2 : 



 án D
Câu 3 :                  



Câu 4: (g/cm3)
 x%  Au  Au:

 Au là  ta có:
V = 4/3 . 3,14 .  (cm3)
=>
=> x = 73,95%

Câu 5 :  

>> Truy cp  hc hóa t 10/22
Ta có:
KMnO4 + 16HCll -> 2KCl + 2MnCl2 + 8H2O + 5cC2
a. 8a. 2.5a
MnO2 + 4HCl => MnCl2 + 2H2O + Cl2
b. 4b. b
M
=> 2*(2.5a+b)=0.6*(8a+4b)
a=2b
=> %m MnO2 = 21.59%

Câu 6 : 

NO3- 
Lo HCl - -

Câu 7: 


Câu 8: 
chung là CnH6 thì n = 3,5
=> m = 0,02.3,5.100 = 7 gam

Câu 9 :  axetilen, andehit axetic, axit fomic, anilin, phenol, metyl
xiclopropan.

>> Truy cp  hc hóa t 11/22

Câu 10 : CH≡C-CHO > CAg≡C-COONH4 + 2 Ag
a a 2a

C6H12O6 > 2 Ag
x 2x


=> a = 0,2 và x = 0,1
=> mC3H2O = 10,8 => %m = 37,5
 A
Câu 11 :
- 




Câu 12 : 



Câu 13: -


Câu 14 : 

>> Truy cp  hc hóa t 12/22
PCl3 +3H20 >H3PO3+3HCl
x >x >3x
PBr3+3H20 >H3PO3+3HBr
y >y >3y

H3PO3 +2KOH >K2HPO4 +2H20
(x+y)->2(x+y)

HCl+ KOH >KCl +H20 3x >3y
HBr +KOH >KBr +H20
3y >3y
nKOH=1.3mol
>5x+5y=1,3<==>5x+5y=1,3
 >x=0,12,y=0,14 mol
>%PCl3=(0,12*137,50/54,44)*100=30,31%

Câu 15 : 

Câu 16 :  là 3 : 2




CnH2n+2 > CnH2n+2-2k + k H2

>> Truy cp  hc hóa t 13/22
a a ak
CnH2n+2-2k + k Br2 > CnH2n+2-2kBr2k
a ak
- 0,25 = 0,28


Câu 17 : 

=> 
Câu 18 : Ta có nX = (nH2O - nCO2)/(1- 3) = 0.01moln glixerol = 0.01*92*0.9 = 0,828

Câu 19 :  Cu, FeS

2
, Na
2
SO
3
, S, FeCl
2
, và Fe
3
O
4


Câu 20 : KClO3 > KCl + 3/2O2 (1)
Ca(ClO2)2 > CaCl2 + 2O2
Ca(ClO3)2 > CaCl2 + 3O2
CaCl2 > CaCl2
KCl > KCl

Ta có nO2 = 0.78mol

mA = mB + mO2 => mB = 58,72 g
CaCl2 + K2CO3 > CaCO3 + 2Kcl
0.18____0.18__________________0.36

>> Truy cp  hc hóa t 14/22

m KCl = mB - m CaCl2 = 38.74g

mKCl = 38.74 + 0.36*74.5 = 65.56




38.74 - 8.94 = 29.8 g

3
= 58,55 %

Câu 21 : -

Câu 22 : 

Câu 23 : 


O4:
2NaOOCCH2NH2 + 2H2SO4  (HOOCCH2NH3)2SO4 + Na2SO4
x x
2NaOOCCH2CH2NH2 + 2H2SO4  (HOOCCH2NH3)2SO4 + Na2SO4
y y


>> Truy cp  hc hóa t 15/22
0,15mol và y = 0,1mol



Câu 24 :  a mol và CmH2m-2O2 \geq 3
-1O2Na a mol và CmH2m-3O2Na b mol
- 0,1*1 => a + b = 0,2 (1)

-1O2Na a mol, CmH2m-3O2Na b mol và NaCl 0,1 mol

 = na + mb và mol H2O = na + mb - b
 + mH2O = 44*(na + mb) + 18*(na + mb - b) = 26,7 => 62*(na+mb) -
18b = 26,72 (3)

=> n = 1 và m = 3,6 => axit no HCOOH 0,1 mol hai axit không no là C3H4O2 x mol và
C4H6O2y mol

=> x = 0,04 và y = 0,06
=> mA = 46*0,1 + 72*0,04 + 86*0,06 = 12,64 gam => %mC3H4O2 = 22,78%

Câu 25 : C propyl clorua, anlyl clorua; phenol; 
axetic, phenylamoni clorua

Câu 26 : 
-> Ca(H2PO4)2 + 2CaSO4

>> Truy cp  hc hóa t 16/22
O4 = 


+ 21,7) = 26,83%.

Câu 27 : nNaOH = 0,15 mol
-R-COOH và Y R'-OH; Z là NH2-R-COO-
-R-COONa và R'OH
18 mol
=> b + c = 0,18 mol; a + c = 0,15 mol nên b - a = 0,03 mol (1)
Ta có MX = R + 59; MZ = 73

Ta có: (R + 59)a + (R + 73)b = 16,65 (2)

Câu 28 : Ta có mO = 3.33 - 2.13 = 1.2g -> nO = 0.075mol
Ta có: 2H+ + O-2 -> H2O
0.15 <-0.075
-> V HCl = 0.15 : 0,6 = 250 ml
-
Câu 29 : Chú ý M tristearin = 3.(12.17 + 35 + 44) + 12.3 + 5 = 890
Natri stearat C17H35COONa có M = 306

m = 1,5 . 85% : 306 :0,85 : 3 : 85 . 100 .890 = 1,710

Câu 30 : 

>> Truy cp  hc hóa t 17/22

=> Anilin, amoniac, metylamin.

Câu 31 : 
=> Trong Y có : nAl(OH)3 = 4x -2y , nCa((Al(OH)4)2 = y, nCH4 = 3x ; nC2H2 = y


Theo bài ra, ta có 4x - 2y = 2y
=> x = y


Câu 32 : 

- 8) : 2 = 6


Câu 33 : 


Câu 34 : Dùng brom





>> Truy cp  hc hóa t 18/22
Câu 35 : Ta có nH2 = 0,1 mol

=> M trung bình = 3,8 : 0,2 = 19
=> Li và Na

Câu 36 : 

Câu 37 : Ta có alpha = C/C0.

m axit =D*V và n = m/M => n = 0.175 mol suy ra C0 = 0.175/1.75 = 0.1
-2.9) = C
-2.9)) / 0.1 = 0.126 = 1,26%

Câu 38 : 


C6H4-C-C-OH
C6H4-C(OH)-C
C-C6H4-C-- 



Câu 39 :  Ca
3
(PO
4
)
2


Câu 40 : 

>> Truy cp  hc hóa t 19/22
=> n min = 0,15 ==> nCO2 = 0,15
nBa(OH)2 = 0,18
 > BaCO3 + H2O
0,15 0,18 0,15
==> m BaCO3 = 0,15.197 = 29,55
 > BaCO3 + H2O
0,207 0,18 0,18
CO2 + BaCO3 + H2O > Ba(HCO3)2
0,027 > 0,027
- 0,027 =0,153 ==> m BaCO3 = 0,153. 197 = 30,14g

Câu 41 :  : C3H3N = k:1
Ta có
kC5H8 + C3H3N > (5k+3)CO2 + (4k+1,5) H2O + 0,5N2
=> 5k + 30,5833 = 9k+5

Câu 42 : nGly = 0.16 ; nAla = 5.34=0.06
- -

- 
- - a- nX = x thì nY = 2x

- -
- -a] = 0.06 / 0.16

>> Truy cp  hc hóa t 20/22
=> a = 2 - Ala - Ala ; Y là Gly - Gly - Gly - Gly ;
Ta có nX = 0.06 / 3 = 0.02 ; nY = 0.02*2 = 0.04 ;
nH2O = 0.02*2 + 0.04*3 = 0.16m = 12 + 5.34 - mH2O = 14.46

Câu 43 : m = d∗V = d∗4R^3 : 3








 1/2 

 R1= 2R2
m1 = d∗V1 = d ∗ 4R1^3 : 3
m2 = d∗V2 = d ∗ 4R2^3 : 3
 m1 = 8m2 m2 = 0.7g
- 0.7 = 4.9g

 CM HCl = 0.0875∗20.2 = 0.875M


Câu 44 : 
-> 2O3

=> V O3 = 0,588.2 = 1,176
=> %O3 = 1,176 : 2 = 58,8%


Câu 45 : Br3 và MBr2

mol hh = a + b = 0,1 (2) và mol Br = 3a + 2b

>> Truy cp  hc hóa t 21/22

=> mol Br- 
(2) và (3) => a = 0,08 và b = 0,02 .

TH 2 : => Ngoài AgB  
 = 188*(3a+2b) + 108b = 52,64 (4)
(2) và (4) => a = 0,053 và b = 0,047
(1) => M = 56


Câu 46 :  
 2NH3
 x 4x 0
 0,2x 0,2. 3x 0,4x
 3,4x 
Ta có:
2NH3 + 3CuO -> 3Cu + 3H2O + N2
0,4x 0,6x

H2 + CuO -> Cu + H2O
3,4x 3,4x
Theo bài ra ta có 0,6x + 3,4x = 4x = 0,51 mol
=> x = 0,1275
=> V = 0,1275 . 5 . 22,4 = 14,28

>> Truy cp  hc hóa t 22/22

Câu 47 : 

Câu 48 :  
C12H22O11 2C6H12O6
x 2x

1 - -
-x) = 029 mol
=> x = 0,045

 D
Câu 49 : 


Câu 50 : 
-0,45 = 0,24 mol
RCOONa + NaOH(có CaO) > Na2CO3 + RH
0,45 > 0,24 > 0,24
=> (R+1).0,24=7,2 > R: C2H5 ; M = 29)


=> m= b + c -a = 0,45.96 + 15,4 - 0,45.40 = 40,6.

>> Truy cp  hc hóa t 23/22
