1
IIT-JEE 1987
MCQ (Single Correct Answer)
+1
-0.25
The metallic lustre exhibited by sodium is explained by
A
diffusion of sodium ions
B
oscillation of loose electrons
C
excitation of free protons
D
existence of body centered cubic lattice
2
IIT-JEE 1986
MCQ (Single Correct Answer)
+1
-0.25
The pair of compound which cannot exist together in solution is:
A
NaHCO3 and NaOH
B
Na2CO3 and NaHCO3
C
Na2CO3 and NaOH
D
NaHCO3 and NaCl
3
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
4
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
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