NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 262 - 268 of 1258

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Question number: 262

» Atomic Structure » Heisenberg Uncertainty Principle

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MCQ▾

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: 263

» P-Block Elements Group 13 to 18 » Group 17 » Oxides and Oxoacids of Halogens

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Question

When blue litmus is dipped into a solution of Hypochlorous acid, it first turns red and then later gets decolorized, why?

Choices

Choice (4) Response

a.

HClO is a base

b.

HClO is an acid

c.

HClO is reducing agent

d.

Both a. and c. are correct

Question number: 264

» P-Block Elements Group 13 to 18 » Group 17 » Oxides and Oxoacids of Halogens

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Question

The oxidation number of chlorine in the final product B in the following sequence of reaction is;

Choices

Choice (4) Response

a.

+7

b.

+5

c.

-1

d.

+3

Question number: 265

» 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: 266

» P-Block Elements Group 13 to 18 » Group 18 » Structures of Fluorides

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MCQ▾

Question

Which of following is planar in shape?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 267

» Atomic Structure » Spin Quantum Number

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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: 268

» P-Block Elements Group 13 to 18 » Group 18 » Noble Gases

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MCQ▾

Question

The element having highest ionization potential is?

Choices

Choice (4) Response

a.

Nitrogen

b.

Helium

c.

Oxygen

d.

Hydrogen