P-Block Elements Group 13 to 18 (NEET Chemistry): Questions 67 - 73 of 100

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 1110 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 450.00 or

Question number: 67

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

MCQ▾

Question

Euchlorine is

Choices

Choice (4) Response

a.

chlorine of europium

b.

a mixture of Cl2 and ClO2

c.

a mixture of Cl2 and Cl2O7

d.

obtained by heating per chlorate with concentrated HCl

Question number: 68

» 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: 69

» 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: 70

» 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

Question number: 71

» 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: 72

» 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: 73

» 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

f Page
Sign In