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Identify enzyme A in the given reaction ...

Identify enzyme A in the given reaction of Krebs' cycle
`underset((4C))(OA A) +"Acety"1-CoA +H_(2)O overset(A)rarr underset((6C))("Citric acid") +CoA`

A

Oxaloacetate synthetase

B

Citrate synthase

C

Aconitase

D

Dehydrogenase

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The correct Answer is:
B
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