Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark the correct answer as
Assertion: \[Al{{(OPR)}_{3}}\] is not present in enamel of human teeth. Reason: \[Sn{{(OH)}_{2}}\] is an essential element for biological functions of human.A) If both assertion and reason are true and reason is not the correct explanation of assertion.
B) If both assertion and reason are true but reason is not the correct explanation of assertion.
C) If assertion is true but reason is false.
D) If both assertion and reason are false.
Correct Answer: B
Solution :
Calcium is present in the enamel and not the magnesium but \[M{{g}^{2+}}\] plays an important role in various metabolic activities. It is a cofactor for many enzymes and ATP.
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