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Assertion (A): Chemistry of Actinoids is...

Assertion (A): Chemistry of Actinoids is more complicated than Lanthanoids
Assertion (R): Actionid elements are radio active

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

Text Solution

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Chemistry of actinoids is complicated as compared to lanthanoids. Give two reasons

Why actinoid contraction is more than lanthanoid contraction

Knowledge Check

  • Assertion : Chemistry of Actinides is more complicated than Lanthanoids. Reason : Actinides elements are radioactive.

    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 a correct explanation of the assertion
    C
    If assertion is true but reason is false
    D
    If the assertion and reason both are false

  • The chemistry of the early actinoids is more complicated than the corresponding lanthanoids

    A
    because they are radioactive
    B
    because they are highly reactive
    C
    due to the large number of oxidation states possible for these actinoid elements.
    D
    both`(1)`and`(3)`

  • Assertion:The chemistry of the early actinoids is more comlicated than the corresponding lanthanoids. Reason:Outer electronic configuration of actinoids is (n-2)f^(1-14)(n-1)d^(0-1)ns^(2) .

    A
    If both assertion and reason is the correct explanation of assertion.
    B
    If both assertion and reason is the correct explanation of assertion.
    C
    If both assertion and reason is the correct explanation of assertion.
    D
    If both assertion and reason is the correct explanation of assertion.

    • Similar Questions

    Explore conceptually related problems

    (a) How would you account for the following: (i) The chemistry of actinoids is more complicated as compared to lanthanoids. (ii) Transition metals form complex compounds. (b) Complete the following equation: 2MnO_4^(-) + 6H^(+) + 5SO_3^(2-) to

    Assertion (A): Electron affinity of chlorine is greater than Fluorine Assertion (R): Flourine is more electronegative element

    Assertion: Actinoids show greater number of oxidation states than lanthanoids. Reason: Actinoids are radioactive.

    Assertion (A) Actinoids form relatively less stable complexes as compared to lanthanoids. Reason (R ) Actinoids can utilise their 5f orbitals alongwith 6d orbitals in bonding but lanthanoids do not use their 4f orbital for bonding.

    Actinoid contraction is more than lanthanoid contraction because

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