1

COMEDK 2024 Evening Shift

MCQ (Single Correct Answer)

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What is the wave number (Units $$\mathrm{cm}^{-1}$$) of the longest wave length transition in the Balmer series of Hydrogen spectrum? $$Z=1 \text { for } H$$

2

COMEDK 2024 Evening Shift

MCQ (Single Correct Answer)

+1

-0

What are the Principal & Azimuthal quantum number values of the valence electrons in tripositive Lutetium?

3

COMEDK 2024 Morning Shift

MCQ (Single Correct Answer)

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-0

A statement of Assertion followed by a statement of Reason is given. Choose the correct answer out of the following options.

Assertion : Energy of $$2 \mathrm{~s}$$ orbital of Hydrogen is less than the energy of the $$2 \mathrm{~s}$$ orbital of Lithium.

Reason : Energies of orbitals in the same subshell decrease with increase in atomic number.

4

COMEDK 2024 Morning Shift

MCQ (Single Correct Answer)

+1

-0

Given below are 4 subatomic particles travelling with the same velocity "v". Which of them will have the shortest wavelength?

$$[A]=\text { Proton }[B]=\text { Neutron. }[C]=\text { Alpha particle. }[D]=\text { Electron. }$$

Questions Asked from Atomic Structure (MCQ (Single Correct Answer))

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