NSO Level 1- Science Olympiad (SOF) Class 9: Questions 769 - 774 of 1123

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Question number: 769

» Chemistry » Matter

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MCQ▾

Question

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

Choices

Choice (4) Response

a.

evaporation

b.

diffusion

c.

melting

d.

sublimation

Question number: 770

» Chemistry » The Nature of Matter

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MCQ▾

Question

Which of the following is an example of a homogeneous solution?

Choices

Choice (4) Response

a.

Copper sulphate solution

b.

Salt solution

c.

Potassium permanganate solution

d.

All a. , b. and c. are correct

Question number: 771

» Chemistry » The Nature of Matter

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MCQ▾

Question

Which of the following is an application of centrifugation

Choices

Choice (4) Response

a.

In laboratories for blood and urine tests

b.

In dairies to separate butter from cream

c.

In washing machines to squeeze out water from clothes

d.

All a. , b. and c. are correct

Question number: 772

» Biology » Tissues

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MCQ▾

Question

Vrunda took the following observations while looking into a permanent slide.

  1. Cells are long and cylindrical.

  2. Light and dark bands are present.

It could be a slide of

Choices

Choice (4) Response

a.

neuron

b.

striated muscle fibre

c.

parenchyma cells

d.

smooth muscle fibre

Question number: 773

» Mental Ability

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MCQ▾

Question

If Nirva says, “Brinda’s father Ayush is the only son of my father-in-law Mukesh, ” then how is Radha, who is sister of Brinda related to Mukesh?

Choices

Choice (4) Response

a.

Daughter

b.

Grand-daughter

c.

Sister

d.

Question does not provide sufficient data or is vague

Question number: 774

» Chemistry » Structure of the Atom

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MCQ▾

Question

The sum of the total number of protons and neutrons present in the nucleus of an atom is called

Choices

Choice (4) Response

a.

Mass number

b.

Atomic number

c.

Valency

d.

None of the above

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