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1. Some basic concept of chemistry — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry1. Some basic concept of chemistry1 Mark
MCQ
Assertion : Equivalent weight of a base $= \frac{Molecular\, weight}{Acidity}$
Reason : Acidity is the number of replaceable hydrogen atoms in one molecule of the base.
  • A
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • B
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  • ✓
    If the Assertion is correct but Reason is incorrect.
  • D
    If both the Assertion and Reason are incorrect.
✓

Answer

Correct option: C.
If the Assertion is correct but Reason is incorrect.
c
Yes, $Eq. wt$ of a base $= \frac{Molecular \,weight}{Acidity}$ Thus, assertion is correct. Acidity is the number of replacable $-OH$ groups (not hydrogen atoms) present in a molecule . Thus, reason is false.

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