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NTA Abhyas NEET2020Chemistryp Block Elements (Group 15, 16, 17 & 18)Practice

A colourless fuming liquid A can be prepared by passing S O 2 over phosphorous pentachloride. The liquid can readily be hydrolysed to give sulphurous acid. The compound A is

Options

  1. AS O C l 2
  2. BS O 2 C l 2
  3. CS C l 2
  4. DS C l 4

Correct answer

A. S O C l 2

Step-by-step solution

P C l 5 + S O 2 → S O C l 2 + P O C l 3 Both S C l 4 and S O C l 2 , on hydrolysis may give H 2 S O 3 . But S C l 4 is a yellow solid liquiefies at room temperature.

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