P-Block Elements Group 13 to 18 (NEET Chemistry): Questions 88 - 94 of 100

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Question number: 88

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

MCQ▾

Question

Except H2F2, other hydrogen halides are gases why?

Choices

Choice (4) Response

a.

Due to covalent nature

b.

Due to hydrogen bonds

c.

Due to HF is weak acid

d.

None of the above

Question number: 89

» P-Block Elements Group 13 to 18 » Group 16 » Introduction

MCQ▾

Question

An acidified potassium dichromate paper turns green when exposed to SO2, due to the formation of which compound?

Choices

Choice (4) Response

a.

Cr2(SO4)3

b.

Cr(SO4)3

c.

Cr3(SO4)3

d.

Cr(SO4)2

Question number: 90

» P-Block Elements Group 13 to 18 » Group 17 » Introduction

MCQ▾

Question

As the atomic number of the halogens increases, the halogens?

Choices

Choice (4) Response

a.

lose the outermost electrons less readily

b.

become lighter in colour

c.

become less dense

d.

gain electrons less readily

Question number: 91

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

MCQ▾

Question

Which of the following element cannot form clathrate compounds with quinol?

Choices

Choice (4) Response

a.

Ar

b.

Rn

c.

Xe

d.

He

Question number: 92

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

MCQ▾

Question

Which of the following two are is structural?

Choices

Choice (4) Response

a.

XeF2, IF2

b.

CO32,SO32

c.

NH3,BF3

d.

PCl5,ICl5

Question number: 93

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

MCQ▾

Question

The shape of XeF4 molecule is?

Choices

Choice (4) Response

a.

Trigonal bipyramidal

b.

see-saw

c.

Tetrahedral

d.

Square planner

Question number: 94

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

MCQ▾

Question

HF and HCl are stable up to 12000C, whereas HBr and HI are not, why?

Choices

Choice (4) Response

a.

The bond strength of H-X decreases from HF to HI

b.

The bond strength of H-X increases from HF to HI

c.

Increase in electro negativity from F to I

d.

All of the above

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