NSTSE (National Science Talent Search Exam- Unified Council) Class 6: Questions 1800 - 1807 of 2029

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Question number: 1800

» Chemistry » Sorting Materials into Groups

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Question

Mixture of grain and husk can be separated by

Choices

Choice (4) Response

a.

Filtration

b.

Winnowing

c.

Hand picking

d.

Sedimentation

Question number: 1801

» Chemistry » Sorting Materials into Groups

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Question

We use hand picking when there is

Choices

Choice (4) Response

a.

Much quantity of mixture

b.

Much quantity of substance

c.

Small quantity of mixture

d.

All of the above

Question number: 1802

» Chemistry » Water

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Question

Why water is a universal solvent?

Choices

Choice (4) Response

a.

It exist in all three states

b.

It dissolves many substances forming a aqueous solution

c.

All of the above

d.

None of the above

Question number: 1803

» Chemistry » Sorting Materials into Groups

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Question

Which of the following substance are most soluble in water at 0C?

Choices

Choice (4) Response

a.

Potassium Chloride

b.

Sodium Nitrate

c.

Potassium Sulphate

d.

None of the above

Question number: 1804

» Chemistry » Water

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Question

Action on carbides for water

Choices

Choice (4) Response

a.

Inorganic compound forms

b.

Organic compound forms

c.

Base forms

d.

Acid forms

Question number: 1805

» Chemistry » Sorting Materials into Groups

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Question

Which of the following material is made from wood?

Choices

Choice (4) Response

a.

Shirt

b.

Book

c.

Chair

d.

Wrist watch

Question number: 1806

» Chemistry » Sorting Materials into Groups

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Question

Which of the following material is a magnetic substance?

Choices

Choice (4) Response

a.

Nickel

b.

Plastic

c.

Wood

d.

Aluminum

Question number: 1807

» Chemistry » Water

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Question

Complete the following reaction

2HClO → + O2

Choices

Choice (4) Response

a.

3HCl

b.

2HCl

c.

HClO

d.

HCl

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