CHXI13:HYDROCARBONS
318306
Pure acetylene has sweet smell, whereas impure gives garlic odour due to presence of:
1 \(\mathrm{NH}_{3}\)
2 \(\mathrm{PH}_{3}\)
3 \(\mathrm{SbH}_{3}\)
4 \(\mathrm{HCl}\)
Explanation:
Due to presence of \(\mathrm{PH}_{3}\) and \(\mathrm{H}_{2} \mathrm{~S}\), acetylene has garlic smell.