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IA group elements tend to be reactive due to their electronic configuration (ns1) in their valence shell. Depending on their size, they form different type of basic oxide.

10 ml of 0.1 N 'X' solution reacts stoichiometrically with 2.29 ml of KIO4 solution. The normality of KIO4 solution and volume of O2 released at STP are ___ and ___ respectively.


Correct Answer
A
0.443 N, 11.2 ml
Your Answer
B
0.044 N, 44.8 ml
Your Answer
C
0.043 N, 44.8 ml
Your Answer
D
0.044 N, 22.4 ml

Solution

The correct option is A 0.443 N, 11.2 ml
KIO4+H22O2KIO3+0O2+H2O
Here KIO4 is getting reduced to KIO3 and H2O2 is undergoing disproportionation.
meq of H2O2=10 ml×0.1 N=1=meq of O2
no. of mmoles of O=meq of O2nfactor=12
Volume produced at STP=22.42=11.2 ml

Normality of KIO4=no. of meq sol. in ml=12.290.44 N

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