0.45g of an acid of mol. Mass 90 was neu...

`0.45g` of an acid of mol. Mass 90 was neutralised by `20mL` of `0.54 N` caustic potash `(KOH)`. The basicity of acid is :

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NARENDRA AWASTHI-STOICHIOMETRY-Level 1 (Q.151 To Q.180)

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