Chemistry [NSTSE (National Science Talent Search Exam- Unified Council) Class 6]: Questions 1 - 7 of 272

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Question 1

Question

MCQ▾

Mixture can have their components in proportion.

Choices

Choice (4)Response

a.

Varying

b.

Fixed

c.

None of the above

d.

All of the above

Question 2

Question

MCQ▾

In the process of sedimentation solid which settle down is called

Choices

Choice (4)Response

a.

Impurity

b.

Sediment՚s Impurity

c.

Sediment

d.

Question does not provide sufficient data or is vague

Question 3

Chemistry

Question

MCQ▾

How can we calculate concentration of water solution?

Choices

Choice (4)Response

a.

b.

c.

Question does not provide sufficient data or is vague

d.

All of the above

Question 4

Question

MCQ▾

Honey is an example of

Choices

Choice (4)Response

a.

Homogeneous Mixture

b.

Heterogeneous Mixture

c.

Pure Substances

d.

Question does not provide sufficient data or is vague

Question 5

Chemistry

Question

MCQ▾

What is the product when chlorine gas passes through water in the presence of diffused sunlight?

Choices

Choice (4)Response

a.

HCl + HClO

b.

HClO

c.

4HCl + O2

d.

HCl

Question 6

Chemistry

Question

MCQ▾

Complete the following reaction

C + H2O (steam) ⇾

Choices

Choice (4)Response

a.

CH3 + O2

b.

CH4 + O2

c.

CO2 + + H2

d.

CO + H2

Question 7

Chemistry

Question

MCQ▾

Which property is similar in rusting and burning?

Choices

Choice (4)Response

a.

Needs oxygen

b.

They forms oxide

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

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