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

One gas bleaches the colour of flowers by reduction while the other by oxidation

Options

  1. AH 2 S and B r 2
  2. BCO and C l 2
  3. CN H 2 and S O 3
  4. DS O 2 and C l 2

Correct answer

D. S O 2 and C l 2

Step-by-step solution

S O 2 bleaches flowers by reduction S O 2 + 2 H 2 O → H 2 S O 4 + 2 [ H ] C l 2 bleaches flowers by oxidation C l 2 + 2 H 2 O → 2 H C l + [ O ]

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