NSO Level 1- Science Olympiad (SOF) Class 8: Questions 672 - 675 of 1076

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Question number: 672

» Metals and Non-Metals

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MCQ▾

Question

The properties of two elements are given below. Identify which of them is a metals and which is a non-metal.

X

Sonorous

Lustrous

Hard

Good conductor of electricity

Oxide is basic in nature

Y

Non sonorous

Lustrous

Soft

Good conductor of electricity

Oxide is acidic in nature

Choices

Choice (4) Response

a.

X is a metal and Y is a non-metal

b.

X and Y are non-metals

c.

X and Y are metals

d.

Y is a metal and X is a non-metal

Question number: 673

» Metals and Non-Metals

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MCQ▾

Question

Purvi wants to make an electric circuit. She has collected some material and made two electric circuits as shown in the figure.

Image of Circuit A and Circuit B

Image of Circuit a and Circuit B

Image of Circuit A and Circuit B

Which of the following is a correct circuit through which electricity flows?

Choices

Choice (4) Response

a.

Circuit A

b.

Circuit B

c.

Neither A nor B

d.

Question does not provide sufficient data or is vague

Question number: 674

» Combustion and Flame

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MCQ▾

Question

As a part of a task, the science teacher gave Sathish and Mukesh two pieces of wood and told them to burn it. Sathish chopped the wood in to slices and Mukesh tried to burn the wood as a whole. Who has taken the correct decision?

Choices

Choice (4) Response

a.

Mukesh

b.

Sathish

c.

None of the above

d.

All of the above

Question number: 675

» Metals and Non-Metals

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MCQ▾

Question

Phosphorous occur in nature in the form of compounds only. The reason is

Choices

Choice (4) Response

a.

It has strong affinity for moisture

b.

It easily reacts with metals and non-metals to form compounds

c.

It has strong affinity for oxygen

d.

Question does not provide sufficient data or is vague

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