NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 215 - 221 of 1258

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Question number: 215

» P-Block Elements Group 13 to 18 » Group 14 » Tendency for Catenation

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MCQ▾

Question

Lime water is formed milky on passing CO2 with the formation of?

Choices

Choice (4) Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

Question number: 216

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

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Question

When hard water is passed through a column packed with zeolite, calcium and magnesium ions exchange with?

Choices

Choice (4) Response

a.

Sodium

b.

Barium

c.

Zinc

d.

Aluminium

Question number: 217

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

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Question

Although the ionization potential of boron is less than gold, yet former is non-metal while the latter is a metal?

Choices

Choice (4) Response

a.

Because gold has 12 neighbour atoms

b.

Because boron has 6 atoms as neighbours

c.

Due to the structural difference

d.

All a. , b. and c. are correct

Question number: 218

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

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MCQ▾

Question

A dry ice piece is composed of?

Choices

Choice (4) Response

a.

Solid He

b.

Solid CO2

c.

Solid SO2

d.

Solid C6H6

Question number: 219

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

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MCQ▾

Question

Sesquioxide can be obtained by heating?

Choices

Choice (4) Response

a.

Boronitride

b.

Metaboric acid

c.

Borax

d.

Orthoboric acid

Question number: 220

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

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Question

Which of the following is acidic in nature?

Choices

Choice (4) Response

a.

Al (OH) 2

b.

c.

B

d.

Question number: 221

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

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MCQ▾

Question

Which of the following is not correct regarding graphite?

Choices

Choice (4) Response

a.

Softer than diamond

b.

Used for making lubricants

c.

It is an amorphous allotrope of carbon

d.

A good conductor of heat