NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 1159 - 1165 of 1259

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Question number: 1159

» Classification of Elements & Periodicity » Ionization Enthalpy

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Question

Which of the following relation is correct?

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Choice (4)Response

a.

b.

c.

d.

Question number: 1160

» Classification of Elements & Periodicity » Isoelectronic Species

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Question

Which oxide of N is isoelectronic with ?

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Choice (4)Response

a.

b.

c.

d.

Question number: 1161

» Atomic Structure » Bohr Model of Hydrogen Atom

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Question

Find out the number of wave made by a Bohr electron in one complete revolution in its 3rd orbit of hydrogen atom -

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Choice (4)Response

a.

6

b.

8

c.

3

d.

4

Question number: 1162

» Atomic Structure » Spectrum of Hydrogen Atom

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The shortest wavelength in H spectrum of Lyman series when is -

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Choice (4)Response

a.

b.

c.

d.

Question number: 1163

» Classification of Elements & Periodicity » Present Form of the Periodic Table

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Question

A compound AB whose electronegativity difference is 1.9, Atomic radius of A and B are and . The distance between A & B means

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Choice (4)Response

a.

b.

c.

d.

Question number: 1164

» Atomic Structure » Bohr Model of Hydrogen Atom

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The energy of an electron in the second and third Bohr orbits of the hydrogen atom is ergs and erg respectively. Calculate the wavelength of the emitted radiation when the electron drops from third to second orbit -

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Choice (4)Response

a.

b.

c.

d.

Question number: 1165

» Classification of Elements & Periodicity » Ionization Enthalpy

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Calculate the energy needed to convert three moles of sodium atoms in the gaseous state to sodium ions. The ionization energy of sodium is

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Choice (4)Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

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