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JEE · NEET Previous Year Question

The volume of 0. 02 M aqueous HBr required to neutralize 10.0 mL of 0.01 M aqueous Ba is (Assume complete neutralization)

Topic: JEE PYQ

Answer: C. Full step-by-step solution below.

  1. A2.5 mL
  2. B5.0 mL
  3. C10. 0 mL
  4. D7. 5 mL

Correct answer: C

Solution

(c) The balanced chemical equation for the reaction between HBr and Ba is:
2HBr + Ba + O
From this equation, we can see that 2 moles of HBr react with 1 mole of Ba.
Equal equivalents will react.
Number of equivalents = Normality x Volume
So,
=
0.02 x = 0. 02 x 10
= 10 ml

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