\(15\) મિનીટ માટે તેમજ \(0.015 \mathrm{~A}\) ના સ્થિર પ્રવાહ સાથે ઝિંક સલ્ફેટ દ્રાવાણના વિદ્યુતવિભાજન વડે ઉત્પન્ન થતા ઝિંકનું દળ _______ \(\times 10^{-4} \mathrm{~g}\) છે. (ઝિંકનું પરમાણવીય દળ = \(65.4 \mathrm{amu}\) )

A \(47\)
B \(46\)
C \(49\)
D \(41\)

Verified Solution

Answer & Solution

Correct Answer

(B) \(46\)

Step-by-step Solution

Detailed explanation

\( \mathrm{Zn}^{+2}+2 \mathrm{e}^{-} \longrightarrow \mathrm{Zn} \) \( \mathrm{W}=\mathrm{Z} \times \mathrm{i} \times \mathrm{t} \) \( =\frac{65.4}{2 \times 96500} \times 0.015 \times 15 \times 60 \) \( =45.75 \times 10^{-4} \mathrm{gm}\)

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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સૂચિ\(-I\) સાથે સૂચિ\(-II\) ને જોડો :

સૂચિ\(-I\)	સૂચિ\(-II\)
\(A\) \(H _3 O ^{+}\)	\(I\) સમચતુષ્ફલક
\(B\) એસિટીલાઈડ એનાયન	\(II\) રેખીય
\(C\) \(NH _4^{+}\)	\(III\) પિરામીડલ
\(D\) \(ClO _2^{-}\)	\(IV\) વળેલ

નીચે આપેલા વિકલ્પોમાંથી સાચો જવાબ પસંદ કરો :

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