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Assertion (A) Separation of Zr and Hf is...

Assertion (A) Separation of Zr and Hf is difficult.
Reason (R ) Because Zr and Hf lie in the same group of the Periodic Table.

A

Both assertion and reason are true, and reason is the correct explanation of the assertion.

B

Both assertion and reason are true but reason is not the correct explanation of assertion.

C

Assertion is not true but reason is true.

D

Both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
B
Assertion and reason are true but reason is not correct explanation of assertion. Separation of Zr and Hf is difficult, it is not because of they lie in the same group of Periodic Table. This is due to lanthanoid contraction which causes almost similar radii of both of them.
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Assertion: Separation of Zr and Hf is difficult. Reason : Because Zr and Hf lie in the same graph of the periodic table.

Assertion. Separation of Zr and Hf is difficult. Reason.Zr and Hf lie in the same group of the periodic table.

Knowledge Check

  • Assertion : Separation of Zr and Hf is difficult. Reason : Because Zr and Hf lie in the same group of the periodic table.

    A
    Both assertion and reason are true and reason is the correct explanation of the assertion .
    B
    Both assertion and reason are true but reason is not the correc explanation of assertion.
    C
    Assertion is not true for reason is true
    D
    Both assertion and reason are false.

  • The elements of same group of the periodic table have

    A
    Same number of protons
    B
    Same valence shell
    C
    Same valence electrons
    D
    Same electrons affinity

  • An element which lies in the same group of the periodic table as mercury is

    A
    cadmium
    B
    gold
    C
    tin
    D
    thallium

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