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NTA Abhyas JEE Main2020Chemistryd and f Block ElementsPractice

Select the correct statements. (1) Ferric bromide is obtained when chlorine gas is bubbled through a solution of ferrous bromide (2) Sodium sulphate is obtained when S O 2 g , H 2 O g and air are passed over heated sodium chlorine (3) H 2 S gas is liberated when aluminium sulphide becomes damp.

Options

  1. Astatements 1 and 2 are correct
  2. Bstatement 3 alone is correct
  3. Cstatements 2 and 3 are correct
  4. Dall the statements are correct

Correct answer

C. statements 2 and 3 are correct

Step-by-step solution

( A ) 2 F e B r 2 + 3 C l 2 → 2 F e C l 3 + 2 B r 2 ( B ) S O 2 + H 2 O + 1 2 O 2 → H 2 S O 4 + 2 H C l ( C ) Al 2 S 3 +6H 2 O → 2 Al(OH) 3 + 3 H 2 S

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