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Assertion: van method is used to prepare...

Assertion: van method is used to prepare ultrapure samples of some metals.
Reason: It involves reaction of `CO` with metals to form volatile carbony,s which decompose on heating to give pure metal.

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:
C
van Arkel method involves use of `I_(2)` to from volatile iodide of metals which on decomposition gives pure metals.
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Knowledge Check

  • With which of the following metals, CO forms a volatile carbonyl complex?

    A
    `Na`
    B
    `Sn`
    C
    `Ni`
    D
    `Hg`

  • Which alkali metal carbonate decompose on heating to liberate CO_(2) gas

    A
    `Li_(2)CO_(3)`
    B
    `CaCO_(3)`
    C
    `Na_(2)CO_(3)`
    D
    `Al_(2)CO_(3)`

  • CO forms a volatile carbonyl complex with which of the following metals ?

    A
    Na
    B
    Sn
    C
    Ni
    D
    Hg
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