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Assertion : In the formation of a molec...

Assertion : In the formation of a molecule , only the outer shell electrons take part in chemical combination and they are known as valence electrons.
Reason : Atoms achieve the stable octet when they are linked by chemical bonds .

A

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

B

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

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
B
In the formation of a molecule, only the outer shell electrons take part in chemical combination because the inner shell electrons are well protected and are generally not involved in the combination process.
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Knowledge Check

  • In the formation of a molecule, only the outer shell electrons take part in chemical combination and are known as

    A
    valence electrons
    B
    Inner electrons
    C
    Inert electrons
    D
    reactive electrons

  • In the formation of a moleculae only the outer shell electrons take part in chemical combination and are known as

    A
    valence electrons
    B
    inner electrons
    C
    inert electrons
    D
    reactive elctrons

  • Chemical bond formation takes place when

    A
    Energy is absorbed
    B
    Forces of attraction overcome forces of repulsion
    C
    Forces of repulsion overcome forces of attraction
    D
    Forces of attraction are eqaul to forces of repulsion.

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