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Oxyacids of Phosphorus

Orthophosphor...

Question

Orthophosphoric acid is completely ioinised in _____steps.

A

1

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B

2

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C

3

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D

4

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Solution

The correct option is C 3
$H_{3} P O_{4} ⇋ H^{+} + H_{2} P O_{4}^{-}$
$H_{2} P O_{4}^{-} ⇋ H P O_{4}^{- 2} + H^{+}$
$H P O_{2}^{- 2} ⇋ H^{+} + P O_{4}^{- 3}$

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Q. Mineral acids are stronger acids than carboxylic acids because :
(i) mineral acids are partially ionised
(ii) minerals acids are completely ionised
(iii) carboxylic acids are a partially ionised
(iv) carboxylic acids are completely ionised
Select the correct alternative.

Q. Question 20
Mineral acids are stronger acids than carboxylic acids because
(i) Mineral acids are completely ionised
(ii) Carboxylic acids are completely ionised
(iii) Mineral acids are partially ionised
(iv) Carboxylic acids are partially ionised

(a) (i) and (iv)
(b) (ii) and (iii)
(c) (i) and (ii)
(d) (iii) and (iv)

Q. Question 20
Mineral acids are stronger acids than carboxylic acids because
(i) Mineral acids are completely ionised
(ii) Carboxylic acids are completely ionised
(iii) Mineral acids are partially ionised
(iv) Carboxylic acids are partially ionised

(a) (i) and (iv)
(b) (ii) and (iii)
(c) (i) and (ii)
(d) (iii) and (iv)

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