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6-2.Equilibrium-II (Ionic Equilibrium)
hard
પિરિડીનની ..... ટકાવારી તે $0.10\, M$ જલીય પિરિડીન દ્રાવણમાં પિરીડિનિયમ આયન$(C_5H_5N^+H)$ બનાવે છે $($ $C_5H_5N = 1.7 \times 10^{-9}$ માટે $K_b)$
A
$0.0060 \%$
B
$0.013\%$
C
$0.77\%$
D
$1.6\%$
(NEET-2016)
Solution
$\mathrm{C}_{5} \mathrm{H}_{5} \mathrm{N}+\mathrm{H}_{5} \mathrm{O} \longrightarrow \mathrm{C}_{5} \mathrm{H}_{5} \mathrm{N}^{+} \mathrm{H}+\mathrm{OH}^{-}$
$\alpha=\sqrt{\frac{K_{b}}{c}}=\sqrt{\frac{1.7 \times 10^{-9}}{0.1}}=\sqrt{1.7 \times 10^{-8}}$
$\% a=1.3 \times 10^{-4} \times 100$
$=1.3 \times 10^{-2}=0.013$
Standard 11
Chemistry
