ÔN LUYỆN NHÔM - CRÔM
Câu 1: 
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
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 !"#$%
&'()*+#+,'-.$/,0$
12'*3 42.560
47%860/,/29.:;
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Câu 2: 4EF*G#+';<H<HCH4H<H@<>
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Câu 3:D#0E*8#**.:@>JM
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Câu 4:4A1;/</4/! 4"9)01.F7 

< !/4//< C <//4/!
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Câu 5:B-09:JNO:%G</PQJ
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/*.: 4CI>JK
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Câu 6-B-09:@'O:%G<PQ
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*U') L%"
7"#/*.:O:%T 40$@>JI.K*.:
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Câu 7: 47%]^;
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Câu 8: D#`1*a$J@>
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Câu 9:bcUER8d.$%.FcE
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Câu 10: bSUER%.Fc%"7E;
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Câu 11: f"7E*8#"#.$;
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Câu 12: D#!1*8#'+*g#3R4I@>
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Câu 13: b%"7;!
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A. ?h_A B. _hB C.  ?hB D. AhB 
Câu 14:f0+E*8#không*iEE0)'jM
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Câu 15: f0+E*8#không*iM
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#*p

0pf-%"7$J4

/
"%')J
=



4 4>'0$@J
?
&

4>/**.:4
D <%"7$J
=
L>
A
.%"7$J
=
L>
A
*&

'
Câu 16 ;4_/[VO:%G<<
=
>
?
%"7$J4I.K/*.:o))J
=
I*K @3qq@J
?
*.*.:/j.:/
*R.:*S*.:=/\AT Y0o < \/VB= C  \/==A
4 \/AAZ D _/?AA
Câu 17 ;f0+E*8#không*iM
< 4IonKrF 
C <Q#R0#%i$4>

?
4 !%"7$J4/1404
=e
D 4InnnKInnnK**').s)
Câu 18;4a%"7$J4I.K*.:o))J
=
I*K (
0tap%"7$)>
=
I.K*.:_[/=# Y0
o
< =/=A C A/AZ 4 ?/?V D V/B=
Câu 19: Cho muối X vào dung dịch AlCl
3
, thấy có kết tủa trắng dạng keo và khí Y bay lên. Khí Y không làm
mất màu dung dịch Br
2
nhưng tạo kết tủa trắng khi sục vào dung dịch vôi trong. Mặt khác, nhúng đũa Pt vào
muối X và hơ trên ngọn lửa đèn khí ngọn lửa có màu tím. Muối X là
A. Na
2
SO
3
. B. K
2
SO
3
. C. K
2
CO

3
. D. Na
2
CO
3
.
Câu 20: Hòa tan hoàn toàn 30 gam hỗn hợp X gồm Mg, Al, Zn trong dung dịch HNO
3
, thu được dung dịch Y
và hỗn hợp gồm 0,1 mol N
2
O và 0,1 mol NO. Cô cạn dung dịch sau phản ứng thu được 127 gam hỗn hợp
muối khan. Vậy số mol HNO
3
đã bị khử trong phản ứng trên là
A. 0,40 mol. B. 0,35 mol. C. 0,45 mol. D. 0,30 mol.
Câu 21: Để oxi hóa hoàn toàn 0,01 mol CrCl
3
thành K
2
CrO
4
bằng Cl
2
khi có mặt KOH, lượng tối thiểu Cl
2
và
KOH tương ứng là
A. 0,015 mol và 0,08 mol. B. 0,015 mol và 0,04 mol.
C. 0,030 mol và 0,04 mol. D. 0,030 mol và 0,08 mol.

Câu 22: 4'0jpU*0;<4
?
/24
=
PQL>
A
PQI@>
?
K
?
@4 4lk
.$*8#*+%8U0jpM
< @
=
4>
?
  C CI>JK
=
 4 @J
?
  D @>J
Câu 23 : f0+không đúng ;
A.J:%4InnK')6*(.N:%4IonK')'1
B  40:%4
=
>
?
/4I>JK
?
/4>/4I>JK

=
*').s)

C.40:%4>/4I>JK
=
0*.:$J4N4>
?
0*.:$
@>J 
D.bpR*/R##+R
Câu 24: uR'aO:%Ga<aPQ
?
>
A
.m') L%"
7"#*.:O:% 40$@>J.*.:)J
=
#p
ov#S:%'`E;
< </PQ/PQ
?
>
A
/<
=
>
?
 C </PQ/<
=
>

?

4 </PQ/PQ
=
>
?
/<
=
>
?
 D </PQ/PQ>/<
=
>
?
Câu 25: (CĐ08)4#0;4I>JK
?
/<
=
IL>
A
K
?
/I>JK
=
/2I>JK
=
/>/4>
?
LR#'
).s)

A. [  B. =  C. ?  D. A.
Câu 26:(CĐ08) 4_?/[O:%01</4/PQ0$.:.J
=
L>
A

'I*U')K/*.:B/ZA))J
=
IW*K 41
I*U')K*.:R Y0
A. A=/V  B. A[/[  C. AZ/Z  D.  AB/_

Câu 27 : f0+không đúng ;
A.J:%4InnK')6*(.N:%4IonK')'1
B  40:%4
=
>
?
/4I>JK
?
/4>/4I>JK
=
*').s)

C.40:%4>/4I>JK
=
0*.:$J4N4>
?
0*.:$@>J 
D.bpR*/R##+R

Câu 28-ĐHA-09:4?/VZO:%G<20$a.:q*J
=
L>
A
_\w
*.:=/=A))J
=
IW*K !R.:*.:E%"7
< _\_/AZ C _\_/VZ
4 XB/Z\ D ZZ/=\
Câu 29-ĐHA-09:4?/\=Aa1J@>
?
/*.:XA\/Z)
@

>
#
IE"%g6#/W*K'lR*R$J
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>PQ D @>
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<
Câu 30-ĐHA-09:4'&*pU&RU;I@J
A
K
=
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A
/PQ4
=
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K
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!
=
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K
?
4CI>JK
=
*.&p L%"7i/ERR
U'
< [  C = 4 A D ?

Câu 31-ĐHB-09:JNO:%G</PQJ
=

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A
I.K L0%"7
"#/*.: 4CI>JK
=
I.K/*.:,
@,)*R.:*S/*.:T2
< O:%G<
=
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PQ
=
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C O:%GCL>
A
PQ>
4 O:%GCL>
A
PQ
=
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D PQ
=
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Câu 32-ĐHB-09: 4EF*G#+0`0:%

(Cl KOH) H SO (FeSO H SO )
KOH
2 2 4 4 2 4
3
Cr(OH) X Y Z T
+ + + + +
+
  →     →   →     →
40/,/2/bQ7;
< !4>
=
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=
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A
x!
=
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=
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B
x4
=
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A
K
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
C !
=

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A
x!4>
=
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D !4>
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B
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A
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A
K
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Câu 33. 4O:%<G</2/ uQ0=Z/V<d.*.:AA/V
O:%C JCJ4*.:D 41D
*.:O:%R
< XX/V C AX/Z 4 BA/B  D _\\/Z
Câu 34.
JO:%G<
=
>
?
4?0$J4."%'o))I*K D
*.:0$@J
?

./j*.:A/_=a o'0;
< _/_=) C _/?AA) 4 _/[VZ) D =/\_V)
Câu 35. JO:%<G/</PQ/2 4=<0$J4."%'\/_)
4=<0$).*.:[/BV?O:%R wR.:PQ<
< Z/Aw C _V/Zw 4 _X/=w D ==/Aw

Câu 36. ba\/Z_a$aPQ
=
>
?
4>G*R'*+%"7U
*.:O:%< J<J@>
?
*'*.:o))@>IE"%g6
#KW* Y0o
< \/==A) C \/VB=) 4 =/=A) D V/B=)
Câu 37. JN_[O:%G1<,GJ@>
?
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A
*(
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=
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< V?w C ?Vw 4 [\w D AVw
Câu 38. 4_/?[O:%G4//<0$J@>
?
*.:O:%)
G\/\_@>\/\A@>
=
b)R.:R1
< _\/\Z C V/[X 4 [/VX D [/XV
Câu 39 . 4?1</PQ/4=)J@>
?
%"7q**.:_/BX=))I*K
G@
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?
*9
< \/=Z C _/A 4 _/B D _/=
Câu 40. 4_/?[O:%<G4//<0$J@>
?
.*.:_/_=)@>@>
=
I*K'
R.:cA=/Z bSR.:RE;
< X/V[ C B/=Z 4 A/=A D [/VX

Câu 41. J<J@>
?
*.:O:%G\/\_[)@

=
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\/\_)@>I%"71@J
A
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K Y0
< _?/[ C ?/BZ 4 \/Z_ D Z/_
Câu 42.aO:%Ga1<*.:%9d;
^Phần 1;0$J4.*.:?/?V)J
=
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^Phần 2;J@>
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Câu 43. DG<@>
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Câu 47.JNV/=[O:%2<=B[J@>
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1E%"7
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4 \/B[__/BXA D \/[[_= ?[
Câu 48. JNB/BAaO:%G/<d[\\GJ
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KLRR*.:
< ?Z/X? C ?Z/X[ 4 ?Z/XB D ?Z/X_
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Câu 49. 4_=/XO:%<%"7$O:%J@>
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Câu 50. JO:%G@<
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Câu 51-CD09;JZ/ZV=O:%G<J@>
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*.:?/_?V)IW*KO:%,G)/*''a)08
) !R.:,[/_Z 4@>JI.K*'/'
)k0 f9&R.:<O:%*9
< _=/Z\w C _[/=[w 4 _\/[=w D _X/[?w
Câu 52. a'7@>J\/?@<>
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Câu 53. 4'7<
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