Question

10 mL of 1 NHCl is mixed with 20 mL of 1`MH_(2)SO_(4)` and 30 mL of 1M NaOH. The resultant solution has:
A. (a)20 meq of `H^(+)` ions
B. (b)20 meq of `OH^(-)`
C. (c )0 meq of `H^(+)` or `OH^(-)`
D. (d)30 millimoles of `H^(+)`

Answer 1

Correct Answer - A
Exlpanation: No. of meq of `H^(+)=10xx1+20xx2=50`
`[Q H_(2)SO_(4), N=2M]`
No. of meq of `OH- =30xx1=30`
No. of meq of `H^(+)` left uncreacted`=50-30=20 `meq
Hence, (a) is correct, (b), (c ) and (d) are ruled out.