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Which of the following equations give ionic product of water? (i) NH 3 aq + H 2 O ⇆ NH 4 aq + + OH aq - (ii) NH 4 aq + + H 2 O ⇆ H 3 O + + NH 3 aq (iii) NH 2 aq - + H 2 O ⇆ NH 3 aq + OH - (iv) NH 3 aq + OH aq - ⇆ NH 2 aq - + H 2 O

Options

  1. Aii and iii
  2. Biii and iv
  3. Ci and ii
  4. Diii and i

Correct answer

C. i and ii

Step-by-step solution

The equation of the ionic product of water can be written as: H 2 O ⇌ H + + OH - or ,   2 H 2 O ⇌ H 3 O + + OH - The above equation can be obtained by adding the first two given equations: NH 3 aq + H 2 O ⇆ NH 4 aq + + OH aq - NH 4 aq + + H 2 O ⇆ H 3 O + + NH 3 aq 2 H 2 O ⇌ H 3 O + + OH - Hence, on doing basic manipulations in i   &   ii we are able to get required equation for ionic product of water

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