1
IIT-JEE 1980
Subjective
+2
-0

(a) 1 litre of a mixture of CO and CO2 is taken. This mixture is passed through a tube containing red hot charcoal. The volume now becomes 1.6 litre. The volumes are measured under the same conditions. Find the composition of the mixture by volume.

(b) A compound contains 28 percent of nitrogen and 72 percent of metal by weight. 3 atoms of metal combine with 2 atoms of N. Find the atomic weight of metal.

2
IIT-JEE 1980
MCQ (Single Correct Answer)
+2
-0.5
Which of the following compounds are covalent?
A
H2
B
CaO
C
KCl
D
Na2S
3
IIT-JEE 1980
MCQ (Single Correct Answer)
+2
-0.5
The total number of electrons that take part in forming the bond in N2 is
A
2
B
4
C
6
D
10
4
IIT-JEE 1980
MCQ (Single Correct Answer)
+2
-0.5
Which of the following is soluble in water?
A
CS2
B
C2H5OH
C
CCl4
D
CHCl3
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