1
IIT-JEE 1979
MCQ (Single Correct Answer)
+4
-1
A gaseous mixture contains oxygen and nitrogen in the ratio of 1 : 4 by weight. Therefore the ratio of their no of molecules is
A
1 : 4
B
1 : 8
C
7 : 32
D
3 : 16
2
IIT-JEE 1978
MCQ (Single Correct Answer)
+2
-0.5
27 g of Al will react completely with how many grams if oxygen?
A
8 g
B
16 g
C
32 g
D
24 g
3
IIT-JEE 1978
MCQ (Single Correct Answer)
+2
-0.5
A compound was found to contain nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. The formula of compound is
A
NO
B
N2O3
C
N2O5
D
N2O4
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