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Assertion (A): magnesium is not present ...

Assertion (A): magnesium is not present in enamel of human teeth.
Reason (R ): Magnesium is an essential elements for biological functions of human beings.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion

C

If assertion is true but reason is false.

D

If assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
B
Both are facts. Calcium is present in enamel of teeth.
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Knowledge Check

  • Assertion: Mg is not present in enamel of human teeth. Reason : Mg is an essential element for biological functions of human

    A
    If both assertion and reason are true and the reason is the correct explanation of the assertion
    B
    If both assertion and reason are true but reason is nto the correct exaplation of the assertion
    C
    If assertion is true but reason is false
    D
    If the assertion and reason both are false

  • Assertion . Mg is not present in enamel of human teeth . Reason . Mg is an essential element for biological functions of human .

    A
    If both assertion and reason are true, and reason is the true explanation of the assertion.
    B
    If both assertion and reason are true, but reason is not the true explanation of the assertion.
    C
    If assertion is true, but reason is false
    D
    If both assertion and reason are false.

  • Assertion (A): magnesium keeps on burning in CO_(2) . Reason (R ): Magnesium reduces CO_(2) to C .

    A
    If both `(A)` and `(R )` are correct and `(R )` is the correct explanation of `(A)`.
    B
    If both `(A)` and `(R )` are correct, but `(R )` is not the correct explanation of `(A)`.
    C
    If `(A)` is correct, but `(R )` is incorrect.
    D
    If `(A)` is incrrect, but `(R )` is correct.