NSO Level 1- Science Olympiad (SOF) Class 9: Questions 513 - 519 of 1128

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Passage

Directions: Some techniques for the separation of components are given in the figures. Answer below questions after observing the figures carefully

Techniques for the Separation of Components

Question 513 (5 of 6 Based on Passage)

Question

MCQ▾

Name the technique of separation shown in figure 3

Choices

Choice (4)Response

a.

Filtration

b.

Chromatography

c.

Sublimation

d.

Fractional distillation

Question 514 (6 of 6 Based on Passage)

Question

MCQ▾

Figure 2 is an arrangement to separate

Choices

Choice (4)Response

a.

Ammonium chloride from a mixture of ammonium chloride and sodium chloride

b.

Sodium chloride from its solution

c.

Iron from its ore

d.

Butter from cream

Question 515

Question

MCQ▾

What would happen, if all oxygen present in the environment is converted to ozone?

Choices

Choice (4)Response

a.

It will become poisonous and kill living forms

b.

We will be protected more

c.

Ozone is not stable and hence it will be toxic

d.

It will help harmful radiations to reach earth and damage many life forms

Question 516

Question

MCQ▾

Negative acceleration is called

Choices

Choice (4)Response

a.

Acceleration

b.

Retardation

c.

Speed

d.

Velocity

Question 517

Question

MCQ▾

The process by which a liquid changes to its solid state is called

Choices

Choice (4)Response

a.

evaporation

b.

diffusion

c.

melting

d.

solidification

Question 518

Question

MCQ▾

Poultry fowl is not susceptible to

Choices

Choice (4)Response

a.

Bacteria

b.

Virus

c.

Fungi

d.

Protozoa

Question 519

Question

MCQ▾

Oil seeds are a good source of

Choices

Choice (4)Response

a.

Vitamins

b.

Minerals

c.

Fats

d.

Proteins

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