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Assertion (A): The atomic radius of iner...

Assertion (A): The atomic radius of inert gases is higher than halogens
Assertion (R): Van der waall's radius is less than covalent radius

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

(A) is false but (R) is true

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Knowledge Check

  • The atomic radius of Zn is __ than that of Cu.

    A
    less
    B
    greater
    C
    equal
    D
    none

  • In the following questions a statement of assertion (A) is followed by a statement of reason ( R) A : Atomic radii decreases in a period upto halogen . R : van der Waal radii of CI is larger than its covalent radii.

    A
    If Both Assertion & Reason are true and the reason is the correct explanation of the assertion then mark (1) .
    B
    If both Assertion & Reason are true but the reason is not the correct explanation of the assertion then mark (2)
    C
    If Assertion is true statement but Reason is false then mark (3)
    D
    If both Assertion and Reason are false statements then mark (4)

  • The concept of van der Waals radius is confined to

    A
    noble gases
    B
    representative nonmetals
    C
    transition nonmetals
    D
    inner transition nonmentals

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    Why the atomic radius of gallium is less than that of Al?

    Why is the atomic radius of oxygen slightly more than that of nitrogen?

    Assertion : Atomic radius of Ga is larger than that of aluminium Reason : Atomic radius always increases down the groups.

    Why do noble gases have bigger atomic size than halogens?

    Define (a) metallic radius and (b) van der Waals radius.

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