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Assertion (A) : Hydrogen has only one el...

Assertion (A) : Hydrogen has only one electron in its 1s orbital but it produces several spectral lines.
Reason (R) : There are many excited energy levels available in H atoms.

A

Assertion and reason both are correct statements and reason is correct explanation for assertion.

B

Assertion and reason both are correct statements but reason is not correct explanation for assertion.

C

Assertion is correct statement but reason is wrong statement.

D

Assertion is wrong statement but reason is correct statement.

Text Solution

Verified by Experts

The correct Answer is:
A
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Knowledge Check

  • Assertion : Hydrogen has one electron in its orbit but it produces several spectral lines. Reason : There are many excited energy levels available.

    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.

  • Assertion. Hydrogen has one electron in its orbit but it produces several spectral lines Reason. There are many excited energy levels available

    A
    If both assertion and reason are true, and reason is the true explanation of the arrertion
    B
    If both assertion and reason are true, but reason is not the true explanation of the assertional
    C
    If assertion is true, but reason is false
    D
    If both assertion and reason are false

  • Assertion (A) : Hydrogen atom consists of only one electron but its emission spectrum has many lines. Reason (R) : Only Lyman series is found in the absorption spectrum of hydrogen atom where as in the emission spectrum all the spectral series all present.

    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 the assertion is false but reason is true.

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    If in an hydrogen atom electron is excited to n=4 state then we can have six different spectral lines in all.

    In Hydrogen atom electron is present in the N shell. If it loses energy, a spectral line many be observed in the region

    Assertion: Hydrogen atom consists of anly one electron but its emission spectrum has may lines. Reason: Only Lyman series is found in the absorption spectrum of hydrogen atom whereas in the emission spectrum, all the series are found.

    The energy of an electron in the 3s orbital (excited state) of H - atom is

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