1
IIT-JEE 1987
MCQ (Single Correct Answer)
+1
-0.25
The brown ring complex compound is formulated as [Fe(H2O)5(NO)+]SO4. The oxidation state of iron is
A
1
B
2
C
3
D
0
2
IIT-JEE 1987
Subjective
+5
-0
(i) What is the weight of sodium bromate and molarity pf solution necessary to prepare 85.5 ml of 0.672 B solution when the half-cell reaction is

$$BrO_3^- + 6H^+ + 6e^- \to $$ $$Br^- + 3H_2O$$

(ii) What would be the weight as well as molarity if the half-cell reaction is:

$$2BrO_3^- + 12H^+ + 10e^- \to$$ $$Br_2 \,+ 6H_2O$$
3
IIT-JEE 1987
True or False
+1
-0
In group IA, of alkali metals, the ionisation potential decreases on moving down the group. Therefore, lithium is a strongest reducing agent
A
TRUE
B
FALSE
4
IIT-JEE 1987
MCQ (Single Correct Answer)
+1
-0.25
The first ionisation potential in electron volts of nitrogen and oxygen atoms are respectively given by
A
14.6, 13.6
B
13.6, 14.6
C
13.6, 13.6
D
14.6, 14.6
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