1
IIT-JEE 1981
MCQ (Single Correct Answer)
+1
-0.25
If 0.50 mol of BaCl2 is mixed with 0.20 mol of Na3PO4, the maximum amount of Ba3(PO4)2 that can be formed is
A
0.70
B
0.50
C
0.20
D
0.10
2
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
3
IIT-JEE 1979
MCQ (Single Correct Answer)
+2
-0.5
The largest number of molecules is in
A
32 g of water
B
28 g of carbon monoxide
C
46 g of ethyl alcohol
D
54 g of nitrogen pentoxide
4
IIT-JEE 1979
MCQ (Single Correct Answer)
+2
-0.5
The total number of electrons is one molecule of carbon dioxide is
A
22
B
44
C
66
D
88

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