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p-Block Elements - I
medium
Anhydrous aluminium chloride fumes in moist air owing to the formation of
A
gaseous aluminium chloride
B
chlorine
C
chlorine dioxide
D
hydrogen chloride
Solution
White fumes are due to the presence of HCl gas.
Anhydrous aluminium chloride is hydrolysed partially with the moisture in the atmosphere to give HCl gas.
This HCI combines with the moisture in the air and appears white in colour.
$\mathrm{AlCl}_{3}+3 \mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{Al}(\mathrm{OH})_{3}+3 \mathrm{HCl}(\text { white fumes })$
Hence, the correct answer is option D.
Standard 11
Chemistry
Similar Questions
Match List$-I$ with List$-II :$
| List$-I$ | List$-II$ |
| $(a)$ $\mathrm{NaOH}$ | $(i)$ Acidic |
| $(b)$ $\mathrm{Be}(\mathrm{OH})_{2}$ | $(ii)$ Basic |
| $(c)$ $\mathrm{Ca}(\mathrm{OH})_{2}$ |
$(iii)$ Amphoteric |
| $(d)$ $\mathrm{B}(\mathrm{OH})_{3}$ | |
| $(e)$ $\mathrm{Al}(\mathrm{OH})_{3}$ |
Choose the most appropriate answer from the option given below :
