MolSynapsequestion bank

MolSynapse / Question bank / Equivalent Concept and Titration / Equivalent mass and n-factor for acids, bases and salts

NEET levelSingle correct optionDifficulty 1 of 3eq111

The equivalent mass of $H X_{3} PO X_{3}$ (molar mass 82 g/mol) when it is completely neutralised by NaOH is (it is a dibasic acid):

A $41.0 g/eq$
B $82 g/eq$
C $27.3 g/eq$
D $20.5 g/eq$

Answer: A

Only two of the three H atoms in

H X_{3} PO X_{3}

are acidic, so n-factor = 2. Equivalent mass = M/n = 82/2 = 41.0 g/eq.

Practice Equivalent Concept and Titration More on Equivalent mass and n-factor for acids, bases and salts

Previous questionNext question

More questions on Equivalent mass and n-factor for acids, bases and salts