NEET Chemistry: Questions 220 - 226 of 677

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Question number: 220

» P-Block Elements Group 13 to 18 » Groupwise Study of the P - Block Elements

MCQ▾

Question

Which of the following is acidic in nature?

Choices

Choice (4) Response

a.

Al (OH) 2

b.

Be(OH)2

c.

Mg(OH)2

d.

B (OH)2

Question number: 221

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

MCQ▾

Question

Which of the following is not correct regarding graphite?

Choices

Choice (4) Response

a.

It is an amorphous allotrope of carbon

b.

Used for making lubricants

c.

A good conductor of heat

d.

Softer than diamond

Question number: 222

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

MCQ▾

Question

Reactivity of borazole is higher than that of benzene because?

Choices

Choice (4) Response

a.

Borazole is electron deficient compound

b.

Boazole is non polar compound

c.

Of localized electrons in it

d.

Borazole is a polar compound

Question number: 223

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

MCQ▾

Question

The bonds present in borazole are?

Choices

Choice (4) Response

a.

9σ, 9π

b.

12σ, 3π

c.

9σ, 6π

d.

6σ, 6π

Question number: 224

» P-Block Elements Group 13 to 18 » Group 14 » Silicates

MCQ▾

Question

In (SiO4)4 (tetrahedral structure), three oxygen atoms are shared in which of the following?

Choices

Choice (4) Response

a.

Pyrosilicate

b.

Three dimensional silicates

c.

Sheet silicate

d.

Linear silicate

Question number: 225

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

MCQ▾

Question

Which one of the following minerals of borax is also known as Tincal or Suhaga?

Choices

Choice (4) Response

a.

Magnesium

b.

Borax

c.

Colemanite

d.

Boric acid

Question number: 226

» P-Block Elements Group 13 to 18 » Groupwise Study of the P - Block Elements

MCQ▾

Question

Which tetra halide does not act as Lewis acid?

Choices

Choice (4) Response

a.

CCl4

b.

SiO4

c.

GeCl4

d.

SnCl4

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