NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 1185 - 1190 of 1258

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Question number: 1185

» Classification of Elements & Periodicity » Ionization Enthalpy

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MCQ▾

Question

Ionization potential of Na would be numerically the same as -

Choices

Choice (4) Response

a.

Electron affinity of

b.

Electron affinity of

c.

Ionization potential of

d.

Electronegativity of

Question number: 1186

» Classification of Elements & Periodicity » Electron Gain Enthalpy

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MCQ▾

Question

Which is correct in the following?

Choices

Choice (4) Response

a.

Radius of atoms is while that of ion is

b.

Radius of atoms is , while that of ion is

c.

Radius of atoms is while that of ion is

d.

Radius of atoms is , while that of ion is

Passage

DIRECTIONS: Read the passage given below and answer the questions that follows:

The tendency of an atom to attract shared pair of electrons towards itself is called electronegativity. both have tendency to attract electrons but electron affinity is for isolated atoms. Whereas electronegativity is for bonded atoms.

A polar covalent or ionic bond of depending on their tendency to attract bonded electron.

There is no unit of electronegativity as is tendency of a bonded atom not an energy

Question number: 1187 (1 of 3 Based on Passage) Show Passage

» Classification of Elements & Periodicity » S, P, D and F Block Elements,

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MCQ▾

Question

Give the correct order of electronegativity of central atom in following compounds –

The correct order is -

Choices

Choice (4) Response

a.

b.

c.

d.

ii > iii > i

Question number: 1188 (2 of 3 Based on Passage) Show Passage

» Classification of Elements & Periodicity » Electron Gain Enthalpy

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MCQ▾

Question

The electro negativities of respectively. The percent ionic character in H and F bond is-

Choices

Choice (4) Response

a.

39

b.

94

c.

43

d.

34

Question number: 1189 (3 of 3 Based on Passage) Show Passage

» Classification of Elements & Periodicity » Electron Gain Enthalpy

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MCQ▾

Question

Which of the following compound has highest value of bond length?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1190

» Classification of Elements & Periodicity » Ionization Enthalpy

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MCQ▾

Question

The electronic configurations for some neutral atoms are given below: Which of these is expected to have the highest second ionization enthalpy?

Choices

Choice (4) Response

a.

b.

c.

d.