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Equilibrium — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistryEquilibrium1 Mark
MCQ
Which of the following will produce a buffer solution when mixed in equal volumes?
  • A
    0.1mol dm–3 NH4OH and 0.1mol dm–3 HCl.
  • B
    0.05mol dm–3 NH4OH and 0.1mol dm–3 HCl.
  • C
    0.1mol dm–3 NH4OH and 0.05mol dm–3 HCl.
  • D
    0.1mol dm–3 CH4COONa and 0.1mol dm–3 NaOH.
✓

Answer

  1. 0.1mol dm–3 NH4OH and 0.05mol dm–3 HCl.

Explanation:

In (c), all HCl will be neutralized and NH4Cl will be formed. Also some NH4OH will be left unneutralized. Thus, the final solution will contain NH4OH and NH4Cl and hence will form a buffer.

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