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Observe the following statements: I. B...

Observe the following statements:
I. Bleaching powder is used in the preparation of chloroform.
II. Bleaching powder decomposes in the presence of `CoCl_(2)` to liberate `O_(2)`.
III. Aqueous `KHF_(2)` is used is 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

Text Solution

Verified by Experts

The correct Answer is:
D
I. Ethyl alcohol reacts with bleaching powder to form chloroform.
`CH_(3)CH_(2)OH+Cl_(2) to CH_(3) CHO+2HCl`
`CH_(3)CHO + 3Cl_(2) to C Cl_(3).CHO+3HCl`
`2C Cl_(3).CHO+Ca(OH)_(2)to2CHCl_(3)+(HCOO)_(2)Ca`
II. In the presence of `COCl_(2)`, bleaching powder decomposes and prouduces `O_(2)`.
`2CaOCl_(2) overset(CoCl_(2)) to 2CaCl_(2)+O_(2)`
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