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JEE Advanced 2010Paper 1
Exam
JEE Advanced
Year
2010
Paper
Paper 1
Subject
Chemistry
Chapter
Ionic Equilibrium

JEE Advanced 2010 · Paper 1 · Chemistry · Ionic Equilibrium

Amongst the following, the total number of compounds whose aqueous...

Amongst the following, the total number of compounds whose aqueous solution turns red litmus paper blue is \begin{array}{llll} \mathrm{KCN} & \mathrm{K}_2 \mathrm{SO}_4 & \left(\mathrm{NH}_4\right)_2 \mathrm{C}_2 \mathrm{O}_4 & \mathrm{NaCl} \\ \mathrm{Zn}\left(\mathrm{NO}_3\right)_2 & \mathrm{FeCl}_3 & \mathrm{~K}_2 \mathrm{CO}_3 & \mathrm{NH}_4 \mathrm{NO}_3 \\ \mathrm{LiCN} & & & \end{array}

Correct answer

3

Step-by-step solution

The aqueous solution of KCN,K2CO3\mathrm{KCN}, \mathrm{K}_2 \mathrm{CO}_3 and LiCN turn red litmus blue because of alkaline nature. The anionic hydrolysis turns the solution alkaline. Ionic equilibrium Conceptual III
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