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Which of the following statements is correct?

1. Because NH3, after losing a proton (H+), gives NH2−.
2. CH3COOH is weak acid while NaOH is strong base, so one equivalent of NaOH can not be neutralized with one equivalent of CH3COOH. Hence the solution of one equivalent of each does not have pH value as 7. Its pH will be towards basic side as NaOH is a strong base hence conc. of OH− will be more than the conc. of H+.
3. Because of electron deficiency, boron trifluoride and stannous chloride are lewis acid.
4. No. of moles of NaOH = 4/40 = 0.1

Correct answer: Because of electron deficiency, boron trifluoride and stannous chloride are lewis acid.

Solution

Option C is correct because both boron trifluoride (BF3) and stannous chloride (SnCl2) act as Lewis acids due to their electron deficiency, making them capable of accepting electron pairs.

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