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BITSAT 2018
Exam
BITSAT
Year
2018
Subject
Chemistry
Chapter
Chemical Bonding and Molecular Structure

BITSAT 2018 · Chemistry · Chemical Bonding and Molecular Structure

The incorrect statement about carbonate ( CO _ 3 ^ 2 - ) ion is,

The incorrect statement about carbonate (CO32−)\left({CO}_{3}^{2 -}\right) ion is,The incorrect statement about carbonate ( CO _ 3 ^ 2 - ) ion is,

Options

  1. AIt has planar structure
  2. BIt has one coordinate bond
  3. CIt has three resonating structure
  4. DHydrolysis of CO32−{CO}_{3}^{2 -} ion gives basic solution

Correct answer

B. It has one coordinate bond

Step-by-step solution

Resonating structure of carbonate CO32−{CO}_{3}^{2 -} ion are

The incorrect statement about carbonate ( CO _ 3 ^ 2 - ) ion is,

In resonating structures bonds are not fixed and therefore, all bond lengths are equal.

The hybridisation of central atom is sp2{sp}^{2}.

Thus, there is no coordinate bond present in CO32−{CO}_{3}^{2 -}. Hence, the second statement is incorrect.

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