Which of the following salts when dissolved in water will produce an acidic solution? 1.NH4Cl2.KHSO43.NaCN4.KNO3
A
2 and 3
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B
1 and 2
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C
only 3
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D
2 and 4
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Solution
The correct option is B1 and 2
NH4Cl is a weak base-strong acid salt.
NaCN is a salt of a strong base (NaOH) and weak acid (HCN).
In water, 1. NH4Cl produces acidic solution 2. KHSO4 produces acidic solution because the neutral salt of strong base KOH and strong acid H2SO4 is K2SO4 3. NaCN produces basic solution 4. KNO3 produces neutral solution