MCQ
Amongst the following solutions, the buffer solution is
- ✓$N{H_4}Cl + N{H_4}OH$ solution
- B$N{H_4}Cl + NaOH$ solution
- C$N{H_4}OH + HCl$ solution
- D$NaOH + HCl$ solution
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$[A]$ $HClO_4$ is more acidic than $\mathrm{HClO}$ because of the resonance stabilization of its anion
$[B]$ $HClO_4$ is formed in the reaction between $Cl_2$ and $H_2 O$
$[C]$ The central atom in both $HClO_4$ and $HClO$ is $s p^3$ hybridized
$[D]$ The conjugate base of $HClO_4$ is weaker base than $H_2 O$
(Atomic mass : $Cl =35.5 \,amu , H =1\, amu$ )
Reason : On increasing dilution, degree of ionisation of weak electrolyte increases and molality of ions also increases.