đề hoá thi thử lần 2 năm 2015 trường âu lạc

  Lý  Hóa  Sinh   Anh   1/15







              
Cu=64; Ag=108; C=12; N=14; O=16; S=32; Cl=35,5.


Câu 1 (ID: 83316).       NaOH 0,4M thu 
12,096 lít khí H
2
(
2

X thu 
A. 23,40 gam B. 21,06 gam C. 34,32 gam D. 24,96 gam


Na + H2O -> NaOH + 1/2H2
x x 1/2x
Al + NaOH + H2O -> NaAlO2 + 3/2H2
y y y 1,5y

x + 0,2 = y
0,5x + 1,5y = 12,096 : 22,4
=> x = 0,12

y = 0,32

m = 0,32 . 78 = 24,96

Câu 2 (ID: 83611). ây thu  
A
4
.
B. 
3
)
3

C. 
2

D. 
2
O
3






 

ĐỀ THI THỬ - KỲ THI QUỐC GIA NĂM 2015
MÔN HÓA HỌC – LẦN 2

Thời gian làm bài: 90 phút
(Đề thi có 05 trang)

SỞ GIÁO DỤC VÀ ĐÀO TẠO TP. HCM
TRƯỜNG THPT ÂU LẠC
MÃ ĐỀ 715




  Lý  Hóa  Sinh   Anh   2/15

Câu 3 (ID: 83613). 
(1) 3Cu + 8H
+
+ 2NO
3
-
 3Cu
2+
+ 2NO + 4H
2
O
(2) Cu + 2H
+
+
1
O
2
 Cu

2+
+ H
2
O

2
(3) 6Cl
-
+ Cr
2
O
7
2-
+ 14H
+
 2Cr
3+
+ 3Cl
2
+ 7H
2
O
(4) (4) Fe + 2H
+
 Fe
2+
+ H
2

(5) 5Fe

2+
+ MnO
4
-
+ 8H
+
 5Fe
3+
+ Mn
2+
+ 4H
2
O
(6) MnO
2
+ 4H
+
+ 2Cl
-
 Mn
2+
+ Cl
2
+ 2H
2
O
ó H
+

A. 5 B. 3 C. 4 D. 2



 
 

Câu 4 (ID: 83615). 
mol H
2
SO
4
thu 
2


A. 37,44 gam B. 47,04 gam C. 28,80 gam D. 45,12 gam


(v
Ta có: b + 3c = 0,72  

 Oxit là Fe3O4 có n = 0,12 mol => nCuO = 0,12 mol
 => m = 37,44 gam
 
Câu 5 (ID: 83617). 
(1) X + Na
2
CO
3
+ H
2

O  Na
2
SO
4
+ Y + Z (2) Y + Na[Al(OH)
4
]  Z + NaHCO
3


2

A. Al(NO
3
)
3
; Al(OH)
3
; CO
2
B. Al
2
(SO
4
)
3
; CO
2
, Al(OH)
3

C. Al
2
(CO
3
)
3
; CO
2
; Al(OH)
3
D. AlCl
3
; CO
2
; Al(OH)
3



 
Câu 6 (ID: 83618). 
(1) 
2

3
)
2
.
(2) Cho d

2

3

(3) 
4

(4) Cho AgNO
3

3
PO
4
.
(5) 
(6) 
3

(7) 
3

3
và CuCl
2
.
(8) Cho CaCl
2
vào d
2
HPO

4
và NaH
2
PO
4
.

A. 5 B. 4 C. 6 D. 7

  Lý  Hóa  Sinh   Anh   3/15




 

Câu 7 (ID: 83620). 
3
)
2
1M và AgNO
3



A. 24,95 gam B. 22,32 gam C. 23,60 gam D. 23,87 gam

Gi

Câu 8 (ID: 83628). 

3
)
2


hí thu 
 
ây là úng?
A. 
B. 
3
)
2
tr
C. 
2

D. 


Anot: 2Cl- - 2e -> Cl2
2H2O  4e -> 4H+ + O2
Catot: Cu2+ + 2e -> 2OH- + H2
Ts: 4 = 0,2
2Ts -
Sau 2ts: nO2 = (0,4-0,12)/4 = 0,07
  0,02.2)/2 = 0,18
 A

Câu 9 (ID: 83637). 


HNO
3
l
NO và N
2

i nào sau ây?.
A. Mg và Al B. Zn và Fe C. Zn và Cr D. Cu và Cr



  Lý  Hóa  Sinh   Anh   4/15


- = 0,6 mol => nNO3- = 0,6 mol
Ta có 6m + 1,32 = 0,6.62 => m = 5,76
=> 2a + 3b = 0,6 mol
MA . x + MB . y = 5,76
p án => Mg và Al




Câu 10 (ID: 83638). 
(1) 
2
.
(2) 
(3) 

(4) 
4
/H
2
SO
4
.
(5) 
2

(6) 
(7) 
2

(8) 
2

2



A. 5 B. 4 C. 3 D. 6





Câu 11 (ID: 83647). 
(1) P + O2 






  Lý  Hóa  Sinh   Anh   5/15


(7) KI + O3 + H2O 


A. 4 B. 6 C. 5 D. 7




Câu 12 (ID: 83684). 
2
SO
4

và y mol AlCl
3
. Quá t


A. 0,25 và 0,145 B. 0,125 và 0,290 C. 0,25 và 0,290 D. 0,125 và 0,145


 


3NaOH + AlCl3 -> Al(OH)3 + 3NaCl
y 3a

Al(OH)3 + NaOH -> NaAlO2+2H2O
3a 4z
- (0,74 - 2x) = 2a (1)
- (0,695 -2x) = 3a
- 0,695 = 0,045

  Lý  Hóa  Sinh   Anh   6/15

- 2x) = 4y - (0,695 - 2x) (2)

4y + 2x = 0,83
12y + 8x = 2,74
=> x= 0,125 và y = 0,145

Câu 13 (ID: 83685). 
2
O
3
và CuO

2


3


A. 94,56 gam B. 86,68 gam C. 88,65 gam D. 90,62 gam



2a . 242 + b . 188 = 73,12
=> a = 0,12; b = 0,08
=> nO = 0,44
=> nCO2 = 0,44
=> m = 86,68 gam

Câu 14 (ID: 83707). 
4


2,016 lít khí (ktc). Dung da 6,12 gam Al
2
O
3

A. 15,33 gam B. 16,50 gam C. 13,73 gam D. 19,93 gam

Al2O3+2NaOH+3H2O >2Na[Al(OH)4]
=> nOH-=2nAl2O3=0,12
- - 2e >Cl2
 > Cu 2H2O + 2e > 2OH- + H2
- nOH-) = 0,09.2-0,06.2=0,03
=> m = 0,03.160 + 0,09.2.58.5=15,33g


Câu 15 (ID: 83714). 
3
O

4
và 
X  
3
 X thu 

  Lý  Hóa  Sinh   Anh   7/15


3
-
. Giá 
là.
A. 81,84 gam B. 68,88 gam C. 77,52 gam D. 79,68 gam



thêm NO3- 
Fe3O4 + 8HCl -> FeCl2 + 2FeCl3 + 4H2O
a 8a a 2a
2FeCl3 + Cu -> CuCl2 + 2FeCl2
2a a a 2a
- 8a mol HCl và a mol Cu
=> b = a + 0,12


3Cu + 8H+ + 2NO3  3Cu2+ + 2NO + 4H2O
0,06 0,16
- 
và 0,48 mol AgCl

=> m = 77,52 gam

Câu 16 (ID: 83715). 


3
25,2% thu 

3
)
3

A. 13,05% B. 13,06% C. 13,08% D. 13,07%

Câu 17 (ID: 83717). au:
(1) 
2
CO
3

2
(SO
4
)
3
.
(2) 
2

2

.
(3) Cho Al
2
S
3

(4) Cho Ca(OH)
2

(5) 
2
(SO
4
)
3

(6) 
2

2
SiO
3
.
(7) 
2
vào dung 
2
.
(8) 
3

NH
2

2
.

A. 6 B. 3 C. 5 D. 4


  Lý  Hóa  Sinh   Anh   8/15

 1, 4, 6, 8

lưu ý: (8) 



3NH2 



2 (OH)2 


, 



(OH)2 tan trong CH3NH2 






[Cu(CH3NH2)4](OH)2
.
2CH3NH2 + CuCl2 + H2O  Cu(OH)2 + 2CH3NH3Cl
Cu(OH)2 + 4CH3NH2  [Cu(CH3NH2)4](OH)2


Câu 18 (ID: 83718). 
(1) FeCO
3
+ HCl  khí X
1
(2) KClO
3
 khí X
2

(2) MnO
2
+ HCl  khí X
3
(4) NH
4
Cl + Na[Al(OH)
4
]  khí X
4


2
SO
4
( khí X
5
(6) ZnS + HCl  khí X
6

(7) Cu + HNO
3
( khí X
7
(8) CaC
2
+ H
2
O  khí X
8


A. 5 B. 4 C. 3 D. 6


CO2, O2, Cl2, NH3, SO2, HCl, H2S, NO2, C2H2



Câu 19 (ID: 83719). 

2
ch AgNO
3
0,8M thu 

A. 63,20 gam B. 80,48 gam C. 45,92 gam D. 54,88 gam

Ta có nFe2+ = 0,16
nAgNO3 = 0,48
Ta có: Fe2+ + Ag+ -> Fe3+ + Ag
=> nAg = 0,16 mol
nAgCl = 0,32 mol
=> m = 63,2



  Lý  Hóa  Sinh   Anh   9/15

Câu 20 (ID: 83721). 
(1) 
4
].
(2) 
2

2
.
(3) 
3
trong NH

3
un nóng.
(4) 
2

(5) 
4
)
2
SO
4

4
].
(6) 
4
.
(7) 
2

2
S.
(8) 
2

4
].

A. 5 B. 8 C. 6 D. 7




Câu 21 (ID: 83722). 
2
và
O
2
thu 

3


2





A. 80% B. 50% C. 60% D. 75%
Ta có nFe = 0,18; nMg = 0,15


Ta có: x + y = 0,18
2x + 3y + 0,5.2 = (119,12 - 108.x) : 143,5
- mAg, mAg tính thông

=> x = 0,04 => y = 0,14 mol

4a + 2b = 0,04.2 + 0,14.3 + 0,15.2 = 0,8
=> a = 0,08 và b = 0,24

 80%


Câu 22 (ID: 83723). 


  Lý  Hóa  Sinh   Anh   10/15


(6) -




A. 5 B. 4 C. 7 D. 6

=> 

Câu 23 (ID: 83725). 
3
)
2
; NaI; K
2
SO
3
; Fe
3
O
4

; H
2
S; FeCO
3


2
SO
4
 
A. 6 B. 7 C. 5 D. 4
 Fe(NO
3
)
2
; NaI; K
2
SO
3
; Fe
3
O
4
; H
2
S; FeCO
3



Câu 24 (ID: 83748). ây là sai?
A. CO
2
+ Na
2
SiO
3
+ H
2
O  NaHCO
3
+ H
2
SiO
3
.
B. SiO
2
+ NaOH (
t0
Na
2
SiO
3
+ H
2
O.
C. Si + NaOH (
t0
Na

2
SiO
3
+ H
2
.
D. SiO
2
+ HCl (
t0
SiCl
4
+ H
2
O




Câu 25 (ID: 83757). ây là úng?
A. Al + HNO
3
( Al(NO
3
)
3
+ N
2
O + H
2

O
B. Pb + HCl  PbCl
2
+ H
2

C. SiO
2
+ HCl ( SiCl
4
+ H
2
O
D. Cu + HCl + O
2
 CuCl
2
+ H
2
O




Câu 26 (ID: 83788). 
2
SO
4




3
28% thu 

A. 0,35 B. 0,30 C. 0,40 D. 0,36

  Lý  Hóa  Sinh   Anh   11/15

Ta có nH2SO4 = 0,55 mol
-


Vì c
3X + 8HNO3 -> 3X(NO3)2 + 2NO + 4H2O (1)


Câu 27 (ID: 83789). 
3
)
2
0,75M và AgNO
3
1M.
 ây là úng.
A. 
3

B. 
3


C. 
3

D. 
3


Ta có nCu2+ = 0,15 mol; nAg+ = 0,1




Câu 28 (ID: 83790). ây là sai?
A. 
2
)
2

B. 
4
)
2
SO
4
và NH
4
NO
3
.
C. 

D. 
4
)
2
HPO
4
và NH
4
H
2
PO
4
.

 
chua phèn

Câu 29 (ID: 83791). ây là sai?.
A. 
2
S
3

B. 
C. 
3
và H
2
SO
4

hòa tan 
D. 
3


ý D sai do CuS không tan trong axit m



Câu 30 (ID: 83792). ây là úng?

  Lý  Hóa  Sinh   Anh   12/15

A. 
B. 
C. 
D. 
2
ngay 

 



Câu 31 (ID: 83793). 
(1) 
3
.
(2) 
3

.
(3) 
2
.
(4) 
2
.
(5) 
3


A. 1 B. 2 C. 3 D. 4
 



Câu 32 (ID: 83794). Cho 8,64 

 +

2
(ktc).
+ 
3

4
NO
3
) và


2

A. 76,12 gam B. 72,24 gam C. 76,45 gam D. 71,86 gam
: nAl = 0,32

=> nO = 0,18 => nFe + nCu = 0,18

=> 3nFe + 2nCu = 0,56 - 0,04.3
=> nFe = 0,08; nCu = 0,1 mol
u(NO3)2 và 0,16 mol Al(NO3)3
=> m = 72,24 gam



Câu 33 (ID: 83795). 
3
; Fe
3
O
4
; Cu
2



  Lý  Hóa  Sinh   Anh   13/15

H
2
SO

4

2

A. FeCO
3
B. FeS C. Cu
2
S D. CuS


=> Cu2S



Câu 34 (ID: 83796).    ây thu 
Fe
3+
?

A. Cho Fe
2
O
3

B. 
2
thu 
C. 
3

.
D. Cho Fe
3
O
4

3


Cho Fe
3
O
4

3

 => Fe3+


Câu 35 (ID: 83797). ây là sai?
A. SO
2

B. NH
3

C. 
D. O
3


ý D sai, nguyên nhân chính là CO2


Câu 36 (ID: 83798). 
3
)
3

NO thoát ra

A. y = 2,4x B. y = 2x C. x = 4,8y D. y = 4x

Fe + 4H+ + NO3- -> Fe3+ + NO + 2H2O
x y
=> y = 4x


Câu 37 (ID: 83799). 
(1) -2.

  Lý  Hóa  Sinh   Anh   14/15

(2) n tính oxi hóa.
(3) 
-
, Br
-
, Cl
-

, F
-
.
(4) 
+

2+
.
(5) 
ban 
(6)  
úng là.
A. 5 B. 2 C. 3 D. 4



Câu 38 (ID: 83800). 
3
O
4
 


3


không 
3
)
3


A. 27,82% B. 28,32% C. 28,46% D. 27,54%



Fe3O4+8HCl > FeCl2 + 2FeCl3+4H2O
Cu+ 2Fe3+ > Cu2+ + 2Fe2+
mX=135a+127.3a=61,92g => a=0,12


- (0,12.2+0,36.3+x)=0,18-x
-(0,18-x)=1,32+x
-x mol NaOH
-x)+69(1,32+x)=100,6 => x= 0,08


-0,08-0,12.2-0,36.3=0,2


  Lý  Hóa  Sinh   Anh   15/15

=> a=0,08 , b=0,12
-m khí = 307,6 g
C%Fe(NO3)3= 0,36.242/307,6=28,32%


Câu 39 (ID: 83801). 
(1) 
(2) 
(3) 

4
thu 

ây là sai?
A. 
B. 
2
O
3
và Cu.
C. 
D. 


=> X l






