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NTA Abhyas NEET2020Chemistryp Block Elements (Group 13 & 14)Practice

The incorrect statement regarding ‘ X ’ in given reaction is : B F 3 + L i A l H 4 → E t h e r X + L i F + A l F 3

Options

  1. ATwelve electrons are involved in bonding
  2. BFour, two centre-two electron bonds
  3. CTwo, three centre-two electron bonds
  4. DX does not react with N H 3

Correct answer

D. X does not react with N H 3

Step-by-step solution

Here X is B 2 H 6 and statement A, B and C are correct. only D is incorrect as it can react with ammonia B F 3 + L i A l H 4 → E t h e r B 2 H 6 ( X ) + L i F + A l F 3 N H 3 can react with B 2 H 6 B 2 H 6 + 2 N H 3 → w a r m [ B H 2 . 2 N H 3 ] + . [ B H 4 ] - → 200 ° C B 3 N 3 H 6 (Inorganic benzene)

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