MCQ
The liquefied metal which expands on solidification is
- ✓$Ga$
- B$Al$
- C$Zn$
- D$In$
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$\text { [en }= H _2 NCH _2 CH _2 NH _2 \text { ] }$
Given : Atomic masses of $C , H$ and $N$ are $12,1$ and $14\, amu$ respectively.
The molar mass of the compound $A$ is $162\, g\, mol ^{-1}$.