Basic Concepts in Chemistry-Matter and Its Nature (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry): Questions 1 - 7 of 10

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Question number: 1

» Basic Concepts in Chemistry » Matter and Its Nature

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MCQ▾

Question

Those which do not allow the flow of current through them are termed as?

Choices

Choice (4) Response

a.

Insulators

b.

Electrodes

c.

Electrolyte

d.

Conductors

Question number: 2

» Basic Concepts in Chemistry » Matter and Its Nature

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MCQ▾

Question

Which one of the following is not a chemical change?

Choices

Choice (4) Response

a.

Sublimation

b.

Rusting

c.

Electrolysis

d.

Combustion

Question number: 3

» Basic Concepts in Chemistry » Matter and Its Nature

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MCQ▾

Question

Which one of the following statement is incorrect?

Choices

Choice (4) Response

a.

All elements are homogeneous

b.

Compounds always contain two or more different elements

c.

A Mixture is not always heterogeneous

d.

Air is a heterogeneous mixture

Question number: 4

» Basic Concepts in Chemistry » Matter and Its Nature

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MCQ▾

Question

The direct change from solid to gaseous state is referred as?

Choices

Choice (4) Response

a.

Deliquescence

b.

Decomposition

c.

Sublimation

d.

Dissociation

Question number: 5

» Basic Concepts in Chemistry » Matter and Its Nature

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MCQ▾

Question

Which of the following is not a mixture?

Choices

Choice (4) Response

a.

Sugar dissolved in water

b.

Distilled water

c.

Gasoline

d.

Liquefied petroleum gas (LPG)

Question number: 6

» Basic Concepts in Chemistry » Matter and Its Nature

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Appeared in Year: 2014

MCQ▾

Question

The weight of silver (at. wt. ) displaced by a quantity of electricity which displaces mL of O2 at STP will be: (AIPMT)

Choices

Choice (4) Response

a.

54.0 g

b.

10.8 g

c.

108.0 g

d.

5.4 g

Question number: 7

» Basic Concepts in Chemistry » Matter and Its Nature

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Appeared in Year: 2011

MCQ▾

Question

In Dumas’ method of estimation of nitrogen 0.35 g of an organic compound gave 55 mL of nitrogen collected at 300 K temperature and 715 mm pressure. The percentage composition of nitrogen in the compound would be (Aqueous tension at ) (AIPMT)

Choices

Choice (4) Response

a.

16.45

b.

14.45

c.

17.45

d.

15.45

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