Question # 1

Bohr's model of atom is contradicted by

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Planck quantum theory

Quartization of energy of electrons

Heisenberg's uncertainty principle

Quartization of angular members

n+1 value of 6d orbital is.

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08

09

10

18

Which of the following wave properties is inversely proportional to the energy for electromagnetic radiations

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Frequency

Wave number

Velocity

Wave length

In the ground state of an atom, the electron is present

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In the nucleus

In the second shell

Nearest to the nucleus

Farthest from the nucleus

Node is a surface on which probability of finding electron is

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Zero

More than 95%

50%

Infinite

The wave number of the light emitted by a certain source is 2 x 10⁶ m-1 . The wavelength of this light will be.

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500 nm

5000 nm

200 nm

5 x10⁷ m

Lyman series lie in

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Ultraviolet region

Visible region

Infrared region

Radio waves region

Orbitals having same energy are called.

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Hybrid orbitals

Valance orbitals

Degenerate orbitals

d- orbitals

De Broglie equation treats electron to be.

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A particle

Wave

Both particle and wave

None of these

The charge on electron was determined by millikan in his oil drop experiment and its value is

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6.023 x 10^-23C

1.602 x 10^-23C

1.602 x 10^-19C

6.625 x 10^-34C

In the ground state of an atom, the electrons is present.

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In the nucleus

In the second shell

Nearest to the nucleus

Farthest form the nucleus

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Chemistry Fsc Part 1 Chapter 5 Online Test MCQs With Answers

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