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Assertion(A): Catalysts are aways transition metals. Reason(R): Trasition metals have varitable oxidation state.A. If both (A) and (R) are correct, and (R) is not the correct explanation of (A)B. If both (A) and (R) are correct, but (R) is the correct explanation of (A).C. If (A) is correct, but (R) is incorrect.D. If (A) is incorrect, but (R) is correct. S

Answer» Correct Answer - B


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