1
IIT-JEE 1986
MCQ (Single Correct Answer)
+1
-0.25
A molal solution is one that contains one mole of solute in
A
1000 g of solvent
B
1.0 L of solvent (1986, 1M)
C
1.0 L of solution
D
22.4 L of solution
2
IIT-JEE 1982
MCQ (Single Correct Answer)
+1
-0.25
The oxidation number of carbon in CH2O is
A
-2
B
+2
C
0
D
+4
3
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
4
IIT-JEE 1981
MCQ (Single Correct Answer)
+1
-0.25
1 mole of N2H4 loses 10 moles of electrons to form a new compound Y. assuming that all nitrogen appears in the new compound , what is the oxidation state of nitrogen in Y ? (there is no change in the oxidation state of hydrogen)
A
-1
B
-3
C
+3
D
+5
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