MCQ
The entropy of a perfectly crystalline solid at absolute zero is
- APositive
- BNegative
- ✓Zero
- DNot definite
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The compounds $A$ and $B$ respectively are ......
Statement $(I)$: A solution of $\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$ is green in colour.
Statement $(II)$: A solution of $\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}$ is colourless.
In the light of the above statements, choose the most appropriate answer from the options given below: