Question

what is the abstract noun of active?

Answer 1

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here ur answer is....

A noun denoting an idea, quality, or state rather than a concrete object, e.g. truth, danger, happiness. 
The abstract noun for the adjective active is activeness.
A related abstract noun is activity.

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Answer 2

Abstract noun is a noun denoting a quality, action or state - something which we cannot see, touch, etc