Question

In which of the following case pH is greater than 7?
1. 50ml of 0.1 M HCl + 50ml of 0.1 M NaCl
2. 50ml of 0.1 M H2SO4 + 50ml of 0.2 M NaOH
3. 50ml of 0.1 M CH3COOH + 50ml of 0.1 M KOH
4. 50ml of 0.1 M HNO3 + 50ml of 0.1 M NH3

Answer 1

Answer:

3. 50ml of 0.1 M CH3COOH + 50ml of 0.1 M KOH

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Answer 2

Answer: OPTION 3

CH3COOH is a weak acid

KOH is a strong base

so resultant solution is always basic,ph greater than 7

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