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NTA Abhyas NEET2020ChemistryIonic EquilibriumPractice

Which one of the following molecular hydrides acts as a Lewis acid?

Options

  1. AC H 4
  2. BN H 3
  3. CH 2 O
  4. DB 2 H 6

Correct answer

D. B 2 H 6

Step-by-step solution

B 2 H 6 is a Lewis acid here as it is electron deficient (6 electron) so it can accept electrons. N H 3 , H 2 O are Lewis bases as they have lone pair of electrons to donate. C H 4 is neither Lewis acid nor Lewis base as it can not donate (have no lone pair) or accept electron (have no vacant orbital).

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