Chemistry-Matter [NSO Level 1- Science Olympiad (SOF) Class 9]: Questions 1 - 4 of 50

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Question 1

Matter

Question

MCQ▾

What does the straight lines RQ and ST represent in the graph?

The Straight Lines RQ and St

Choices

Choice (4)Response

a.

The heat absorbed/released is used for change of state

b.

RQ is the latent heat of fusion of ice and ST is the latent heat of condensation

c.

The temperature remains steady

d.

All a., b. and c. are correct

Question 2

Matter

Question

MCQ▾

Identify X, Y & Z in the diagram

Change of Matter State

Choices

Choice (4)Response

a.

X = Deposition, Y = Condensation, Z = Freezing

b.

X = Freezing, Y = Deposition, Z = Condensation

c.

X = Condensation, Y = Freezing, Z = Deposition

d.

All of the above

Question 3

Matter

Question

MCQ▾

Take two glasses. Fill the first glass with cold water and the second with hot water. Put one teaspoon full sugar in each glass and stir well. What will be the observation?

Choices

Choice (4)Response

a.

Sugar dissolves faster in the second glass

b.

Sugar does not dissolve in both the glasses

c.

Sugar dissolves faster in the first glass (picture)

d.

Sugar dissolves simultaneously in both the glasses

Question 4

Matter

Question

MCQ▾

Which of the following option is common to gases and liquids

Choices

Choice (4)Response

a.

no definite mass

b.

no definite volume

c.

no definite shape

d.

All of the above

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