1
IIT-JEE 1985
MCQ (Single Correct Answer)
+1
-0.25
Hydrogen gas will not reduce
A
heated cupric oxide
B
heated ferric oxide
C
heated stannic oxide
D
heated aluminium oxide
2
IIT-JEE 1985
MCQ (Single Correct Answer)
+1
-0.25
Molecular formula of Glauber's salt is:
A
MgSO4.7H2O
B
CuSO4.5H2O
C
FeSO4.7H2O
D
Na2SO4.10H2O
3
IIT-JEE 1985
MCQ (Single Correct Answer)
+1
-0.25
The oxide that gives hydrogen peroxide on treatment with a dilute acid is
A
PbO2
B
Na2O2
C
MnO2
D
TiO2
4
IIT-JEE 1984
MCQ (Single Correct Answer)
+1
-0.25
The hydration energy of Mg++ is larger than that of:
A
Al3+
B
Na+
C
Be++
D
Mg3+
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