NEET Chemistry: Questions 292 - 297 of 677

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Question number: 292

» P-Block Elements Group 13 to 18 » Group 18 » Introduction

MCQ▾

Question

What is the correct order of occurrence (%by weight) in air of Ne, Ar and Kr?

Choices

Choice (4) Response

a.

Ar>Ne>Kr

b.

Ne>Kr>Ar

c.

Ne>Ar>Kr

d.

Ar>Kr>Ne

Question number: 293

» Basic Concepts in Chemistry » Chemical Equations and Stoichiometry

MCQ▾

Question

H3AsO3+I2+H2O- > H3AsO4+2HI 0.01 equivalent of the mentioned acid will neutralize how many grams of NaOH ?

Choices

Choice (4) Response

a.

0.2

b.

0.3

c.

0.4

d.

0.1

Question number: 294

» P-Block Elements Group 13 to 18 » Group 16 » Allotropic Forms of Sulphur

MCQ▾

Question

The number of lone pairs and number of S-S bonds in S8 molecules are respectively?

Choices

Choice (4) Response

a.

8.16

b.

8, 4

c.

16, 8

d.

8, 8

Question number: 295

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

MCQ▾

Question

Helium is added to oxygen used by deep sea divers because?

Choices

Choice (4) Response

a.

it is less poisonous than nitrogen

b.

it is less soluble in blood than nitrogen under high pressure

c.

it is lighter than nitrogen

d.

it is readily miscible with oxygen

Question number: 296

» Basic Concepts in Chemistry » Molar Mass

MCQ▾

Question

The density of O2 at NTP is 1.429 gliter . Calculate the standard molar volume of gas-

Choices

Choice (4) Response

a.

33.6 lit

b.

5.6 lit.

c.

11.2 lit

d.

22.4 lit.

Question number: 297

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

MCQ▾

Question

When chlorine water is added to an aqueous solution of sodium halide in the presence of chloroform, a violet coloration is obtained. When more of chlorine water is added, the violet coloration disappears and solution becomes colorless. This confirms that sodium halide is?

Choices

Choice (4) Response

a.

chlorine

b.

Iodide

c.

fluoride

d.

Bromide

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