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Assertion : Berylium does not impart any...

Assertion : Berylium does not impart any characteristic colour to the Bunsen flame.
Reason : Due to its very high ionization energy, beryllium requires a large amount of energy for excitation of the electrons.

A

If both (A) and (R) are true and (R) is the \correct explanation of (A)

B

If both (A) and (R) are true but (R) is not correct explanation of (A)

C

If (A) is true but (R) is false

D

If (A) is false and (R) is true

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • Assertion (A): Magnesium does not impart any characteristic colour to the flame. Reason (R ): Due to small size and high effective nuclear charge, magnesium requires a large amount of energy for excitation of electrons.

    A
    If both `(A)` and `(R )` are correct and `(R )` is the correct explanation of `(A)`.
    B
    If both `(A)` and `(R )` are correct, but `(R )` is not the correct explanation of `(A)`.
    C
    If `(A)` is correct, but `(R )` is incorrect.
    D
    If `(A)` is incrrect, but `(R )` is correct.

  • Assertion : Be and Mg do not impart characteristic colour to the flame. Reason : Both Be and Mg have high ionisation energy.

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

  • Assertion: Be and Mg do not impat characteristic colour to the flame. Reason: both Be and Mg have high ionization energy.

    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 is not the correct explanation of assertion
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.
    • MOTION-S-BLOCK-EXERCISE - 2 (Level - II) Multiple Correct | JEE Advanced
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