Read each sentence to find out whether there is any error in it. The error, if any, will be in one part of the sentence, the name of the part is the answer. If there is no error, the answer is (5)..
Five quintals of wooden coal (1) / are (2) / his annual requirement (3) for the unit. (4) / No Error (5)
Replace `are’ by `is’, `five quintals’ refers a definite quantity (as collective noun) so verb will be singular.
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