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प्रश्न
Give one example of a salt which gives an aqueous solution having:
pH more than 7
उत्तर
K2CO3 is formed from a weak acid, carbonic acid (H2CO3), and a strong base, potassium hydroxide (KOH). On hydrolysis, K2CO3 forms more OH- ions than H+ ions. Thus, it is basic, with a pH more than 7.
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संबंधित प्रश्न
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`NaCI (aq) + H_2O (l) `
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(b) sodium sulphate
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Give one example of a salt which gives an aqueous solution having:
pH less than 7
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| Solution | pH value |
| A | 12 |
| B | 2 |
| C | 7 |
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