P-Block Elements Group 13 to 18 (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry): Questions 49 - 56 of 100

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Question number: 49

» P-Block Elements Group 13 to 18 » Group 14 » Allotropes of Carbon

MCQ▾

Question

Graphite is good conductor of electricity because it contains?

Choices

Choice (4) Response

a.

Strong C = C bonds

b.

Strong C-C bonds

c.

Bonded electrons

d.

Mobile electrons

Question number: 50

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

MCQ▾

Question

A mixture of ethyl alcohol and boric acid burns with green edged flame due to the formation of?

Choices

Choice (4) Response

a.

b.

c.

H3BO3

d.

Question number: 51

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

MCQ▾

Question

Which of the following bond is weaker among halogens?

Choices

Choice (4) Response

a.

Cl-Cl

b.

Br-Br

c.

F-F

d.

I-I

Question number: 52

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

MCQ▾

Question

The gas with lowest boiling point is?

Choices

Choice (4) Response

a.

Neon

b.

Argon

c.

Helium

d.

Radon

Question number: 53

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

MCQ▾

Question

Which of the following elements of group 16 has largest atomic radii?

Choices

Choice (4) Response

a.

Polonium

b.

Sulphur

c.

Oxygen

d.

Selenium

Question number: 54

» P-Block Elements Group 13 to 18 » Group 17 » Interhalogen Compounds

MCQ▾

Question

Inter halogen compounds are more reactive than the individual halogen because?

Choices

Choice (4) Response

a.

They carry more energy

b.

They are more ionic

c.

Two halogen s are present in place of one

d.

Their bond energy is less than the bond energy of the halogen molecule

Question number: 55

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

MCQ▾

Question

In Ramsay and Rayleigh’s isolation of noble gases from air, the nitrogen of the air is finally converted into?

Choices

Choice (4) Response

a.

b.

c.

and

d.

Question number: 56

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

MCQ▾

Question

The first noble gas compound obtained was?

Choices

Choice (4) Response

a.

b.

c.

d.

XeOF4

f Page
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