Atomic Structure (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry): Questions 1 - 7 of 97

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Question number: 1

» Atomic Structure » Heisenberg Uncertainty Principle

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Question

what will be the uncertainty in velocity of a cricket ball if its uncertainty in position is of order of 1Å.

(If mass = 0.15kg)

Choices

Choice (4) Response

a.

2.22 m/s

b.

2.22 m/s

c.

3.51 m/s

d.

3.51 m/s

Question number: 2

» Atomic Structure » Spin Quantum Number

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Question

If the set of quantum number of an element is n = 4, l = 0, m = 0 and s=+1/2. Identify that element.

Choices

Choice (4) Response

a.

Titanium

b.

Sodium

c.

Potassium

d.

Scandium

Question number: 3

» Atomic Structure » Spin Quantum Number

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MCQ▾

Question

Correct set of four quantum numbers for the outermost electron of rubidium (Z = 37) is -

Choices

Choice (4) Response

a.

5,1, 0,1/2

b.

5,1, 1,1/2

c.

5,0, 0,1/2

d.

6,0, 0, ½

Question number: 4

» Atomic Structure » Spin Quantum Number

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MCQ▾

Question

The maximum number of atomic orbitals associated with a principal quantum number 3 is

Choices

Choice (4) Response

a.

25

b.

12

c.

16

d.

9

Question number: 5

» Atomic Structure » Hund's Rule

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Question

For a given electron configuration, the term with maximum multiplicity has the lowest energy. This rule was proposed by-

Choices

Choice (4) Response

a.

Pauli

b.

Hund

c.

Aufbau

d.

Dalton

Question number: 6

» Atomic Structure » Quantum Mechanics

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Question

The wave-mechanical model of atom is based upon -

Choices

Choice (4) Response

a.

De Broglie concept of dual character of matter

b.

Schrodinger wave equation

c.

Heisenberg’s uncertainty principle

d.

All a. , b. and c. are correct

Question number: 7

» Atomic Structure » Heisenberg Uncertainty Principle

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MCQ▾

Question

If uncertainty in position and momentum are equal, the uncertainty in velocity is –

Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

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