1.

(A) Calamine is a mineral of calcium (R) Calamine is chemically a sulphate mineral

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Both (A) and (R) are true and (R) is the correct EXPLANATION of (A)
Both (A) and (R) are true and (R) is not the correct explanationof (A)
(A) is true but (R) is FALSE
Both (A) and (R) are false

ANSWER :D


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