NEET Chemistry Le Chatelier's Principle Match the Following Question
Match Column-I with Column-II.
Column-I Column-II (a) Addition of H2 (i) Decrease of red color (b) Addition of HgCl2 (ii) Increase of red color (c) Addition of KSCN (iii) Shift equilibrium right (d) Removal of SCN– (iv) Shift equilibrium left
Choose the correct matching:
a-iii, b-i, c-ii, d-iv
a-i, b-ii, c-iii, d-iv
a-ii, b-iv, c-i, d-iii
a-iv, b-iii, c-i, d-ii
Correct Answer
Detailed Explanation
According to Le Chatelier's Principle, adding H2 shifts the equilibrium to the right, increasing the concentration of products. Adding HgCl2 decreases red color due to the formation of a stable complex with SCN– ions, thus shifting the equilibrium left. Adding KSCN increases red color by shifting the equilibrium to the right, while removing SCN– shifts it left to replenish SCN– ions.
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