AP EAMCET · Chemistry · p Block Elements (Group 15, 16, 17 & 18)
Observe the following statements :
I. Bleaching powder is used in the preparation of chloroform.
II. Bleaching powder decomposes in the presence of \(\mathrm{CoCl}_2\) to liberate \(\mathrm{O}_2\).
III. Aqueous \(\mathrm{KHF}_2\) is used in the preparation of fluorine.
The correct combination is :
- A I, II and III are correct
- B Only II is correct
- C Only I and III are correct
- D Only I and II are correct
Answer & Solution
Correct Answer
(D) Only I and II are correct
Step-by-step Solution
Detailed explanation
Reaction of ethyl alcohol with bleaching powder to form chloroform takes place as - \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OH}+\mathrm{Cl}_2 \longrightarrow \mathrm{CH}_3 \cdot \mathrm{CHO}+2 \mathrm{HCl}\)…
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