MCQ
Which of the following gives layer test ?
- A$I^-$
- ✓$Br^-$
- C$NO_3^-$
- DBoth $(A)$ and $(B)$
✓
Answer
Correct option: B.
$Br^-$
b
Boiling point of $HF$ is highest due to $H$-bonding. For other halogen acids boiling point increase in the order $HCl \,< \,HBr \,< \,HI$. Therefore, most volatile (with lowest boiling point) is $HCl$.
Boiling point of $HF$ is highest due to $H$-bonding. For other halogen acids boiling point increase in the order $HCl \,< \,HBr \,< \,HI$. Therefore, most volatile (with lowest boiling point) is $HCl$.
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