Chemistry-Changes Around Us [NSTSE (National Science Talent Search Exam- Unified Council) Class 6]: Questions 1 - 7 of 45

Access detailed explanations (illustrated with images and videos) to 2029 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. Unlimited Access, Unlimited Time, on Unlimited Devices!

View Sample Explanation or View Features.

Rs. 550.00 -OR-

How to register? Already Subscribed?

Question 1

Changes Around Us

Question

MCQ▾

When you put some ice cubes in a glass, droplets of water are formed on the outer wall of the glass. This explains the phenomenon of-

Choices

Choice (4)Response

a.

Melting

b.

Evaporation & Condensation

c.

Freezing

d.

Condensation

Question 2

Changes Around Us

Question

MCQ▾

Irreversible change is opposite to which change.

Choices

Choice (4)Response

a.

Natural change

b.

Reversible change

c.

All of the above

d.

None of the above

Question 3

Changes Around Us

Question

MCQ▾

At which temperature the vapour pressure of a liquid is equal to the atmospheric pressure

Choices

Choice (4)Response

a.

b.

c.

Both a. and b. are correct

d.

None of the above

Question 4

Changes Around Us

Question

MCQ▾

Which one of the following is volatile in nature?

Choices

Choice (4)Response

a.

Water

b.

Petrol

c.

Milk

d.

Common Salt

Question 5

Changes Around Us

Question

MCQ▾

Burning is a change.

Choices

Choice (4)Response

a.

Physical change

b.

Chemical change

c.

All of the above

d.

Question does not provide sufficient data or is vague

Question 6

Changes Around Us

Question

MCQ▾

Changing of season is a change.

Choices

Choice (4)Response

a.

Fast

b.

Periodic

c.

Natural

d.

Both b. and c. are correct

Question 7

Changes Around Us

Question

MCQ▾

When sugar is heated its color changes into –

Choices

Choice (4)Response

a.

Black

b.

Brown

c.

Red

d.

Grey

Developed by: