NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 876 - 881 of 1258

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Question number: 876

» 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: 877

» Basic Concepts in Chemistry » Atomic and Molecular Masses

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Appeared in Year: 2016

MCQ▾

Question

Suppose the elements X and Y combine to form two compounds XY2 and X3Y2. When 0.1 mole of XY2 and XY2 weights 10 g and 0.05 mole of X3Y2 weights 9 g, the atomic weights of X and Y are

Choices

Choice (4) Response

a.

60,40

b.

20,30

c.

30,20

d.

40,30

Question number: 878

» Basic Concepts in Chemistry » Significant Figures

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MCQ▾

Question

Which of the following values have four significant figures?

(I) (II) (III)

Choices

Choice (4) Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

Question number: 879

» Organic Compounds with Oxygen » Preparation, Properties and Reactions and Uses

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MCQ▾

Question

In the esterification reaction of alcohols

Choices

Choice (4) Response

a.

H- is replaced by sodium metal

b.

H- is replaced by CH3COO group

c.

OH- of acid is replaced by C2H5O- of alcohol

d.

OH- is replaced by chlorine

Question number: 880

» Biomolecules » Nucleic Acids

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MCQ▾

Question

In deoxyribonucleic acid the sugar is?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 881

» Atomic Structure » Shapes of S, P and D - Orbitals

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MCQ▾

Question

The Shape of the orbital is given by?

Choices

Choice (4) Response

a.

Magnetic quantum number

b.

Spin quantum number

c.

Azimuthal quantum number

d.

Principal quantum number