NEET Chemistry: Questions 286 - 291 of 677

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Question number: 286

» P-Block Elements Group 13 to 18 » Group 17 » Hydrogen Halides

MCQ▾

Question

Which of the following hydrogen halide is least volatile in nature?

Choices

Choice (4) Response
a.

HF

b.

HCl

c.

HI

d.

HBr

Question number: 287

» P-Block Elements Group 13 to 18 » Group 18 » Oxides of Xenon

MCQ▾

Question

Xenon hexafluoride reacts with silica to form a xenon compound X. The oxidation state of Xe in X is?

Choices

Choice (4) Response
a.

+6

b.

+2

c.

+4

d.

0

Question number: 288

» Atomic Structure » Spin Quantum Number

MCQ▾

Question

Beryllium’s fourth electron will have the four quantum numbers -

n m s

Choices

Choice (4) Response
a.

1 1 1 1/2

b.

2 1 0 + 1/2

c.

2 0 0 - 1/2

d.

1 0 0 1/2

Question number: 289

» Atomic Structure » Spin Quantum Number

MCQ▾

Question

Lithium-three electron will have the quantum numbers

n m s

Choices

Choice (4) Response
a.

1 0 0 1/2

b.

2 0 0 - 1/2

c.

2 0 0 + 1/2

d.

1 1 1 1/2

Question number: 290

» Basic Concepts in Chemistry » Mole Concept

Assertion-Reason▾

Assertion (Ꭺ)

As mole is the basic chemical unit, the concentration of the dissolved solute is usually specified in terms of number of moles of solute.

Reason (Ꭱ)

The total number of molecules of reactants involved in a balanced chemical equation is known as molecularity of the reaction.

Choices

Choice (4) Response
a. Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ
b. Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ
c. Both Ꭺ and Ꭱ are false
d. Ꭺ is true but Ꭱ is false

Question number: 291

» P-Block Elements Group 13 to 18 » Group 16 » Structures of Oxoacids of Sulphur

MCQ▾

Question

Sulphuric acid has high boiling point and viscosity, why?

Choices

Choice (4) Response
a.

due to conductivity

b.

due to it has more affinity for water

c.

due to hydrogen bonding

d. None of the above

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