1
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+
2
IIT-JEE 1983
MCQ (Single Correct Answer)
+1
-0.25
Heavy water is
A
H218O
B
water obtained by repeated distillation
C
D2O
D
water at 4oC
3
IIT-JEE 1981
MCQ (Single Correct Answer)
+1
-0.25
A solution of sodium metal in liquid ammonia is strongly reducing due to the presence of
A
sodium atoms
B
sodium hydride
C
sodium amide
D
solvated electrons
4
IIT-JEE 1980
MCQ (Single Correct Answer)
+1
-0.25
Calcium is obtained by
A
electrolysis of molten CaCl2
B
electrolysis of solution CaCl2 in water
C
Reduction of CaCl2 with carbon
D
roasting of limestone
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