Structure of Atom Test

Result

Structure of Atom Test - 29

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
4 / -1

Energy equivalent of 10.00 cm^–1 is

A

B

C

D
all are correct
Question 2
4 / -1

The shortest wavelength of H-atom in Lyman series is x, then longest wavelength in Balmer series of He⁺ is

A

B

C

D
Question 3
4 / -1

The energy of hydrogen atom in its ground state is –13·6 eV. The energy of the level corresponding to the quantum number n = 5 is

A
“0·54 eV

B
“5·40 eV

C
“0·85 eV

D
“2·72 eV
Question 4
4 / -1

The ground state configuration of Fe³⁺ ion in gaseous state is: (At. No. of Fe = 26}

A

B

C

D
Question 5
4 / -1

Which of the following expressions gives the de – Broglie relationship ?

A

B

C

D
Question 6
4 / -1

A
1·05 × 10^–28 m

B
1·05 × 10^–26 m

C
5·27 × 10^–30 m

D
5·25 ×10^–28 m
Question 7
4 / -1

If the radius of first Bohr orbit be a₀, then the radius of third Bohr orbit would be

A
3 × a₀

B
6 × a₀

C
9 × a₀

D
1/9 × a₀

Solution
Question 8
4 / -1

The first emission line in the atomic spectrum of hydrogen in the Balmer series appears at

A

B

C

D

Solution
Question 9
4 / -1

The de-Broglie wavelength of a particle with mass 1g and velocity 100 m/s is

A

B

C

D
Question 10
4 / -1

A

B

C

D