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BITSAT Chemistry Classification of Elements and Periodicity in Properties 2020 BITSAT 2020

BITSAT Chemistry Question (2020) — Solution

Question

The correct order of acidic strength :

Options

  1. A. Cl _ 2 O _ 7 > SO _ 2 > P _ 4 O _ 10
  2. B. K _ 2 O > CaO > MgO
  3. C. CO _ 2 > N _ 2 O _ 5 > SO _ 3
  4. D. Na _ 2 O > MgO > Al _ 2 O _ 3

Answer

A. Cl _ 2 O _ 7 > SO _ 2 > P _ 4 O _ 10

Step-by-step solution

Acidic character of oxide Non-metallic nature of element. Non-metallic character increases along the period. Hence order of acidic character is Cl _ 2 O _ 7 > SO _ 2 > P _ 4 O _ 10

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