NSO Level 1- Science Olympiad (SOF) Class 10: Questions 588 - 592 of 986

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Question number: 588

» Sources of Energy

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MCQ▾

Question

Read the given statements and mark the correct option

Statement 1: In energy of Sea Waves, when strong winds stop blowing, the generator stops producing electricity

Statement 2: The waves are generated by the strong winds that blow across the sea

Choices

Choice (4) Response

a.

Only statements 1 is correct

b.

Only statements 2 is correct

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

Question number: 589

» Metals and Non - Metals

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MCQ▾

Question

Zinc sulphate was taken in two test tubes. Iron and Copper were added in these tubes. After reaction colour of Zinc and aluminum is

Choices

Choice (4) Response

a.

Blue to colorless

b.

Blue and reddish brown

c.

Light green and Blackish Grey

d.

None of the above

Question number: 590

» Metals and Non - Metals

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MCQ▾

Question

What is not correct statement for ores?

Choices

Choice (4) Response

a.

Limonite is an calcium ore

b.

Mineral that contains high percentage of metal that can be extracted profitably from it.

c.

Ores are “rock ” that contain minerals and metallic compounds

d.

None of the above

Question number: 591

» Chemical Reactions and Equation

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MCQ▾

Question

Which of the following is use to help for observation of chemical reaction?

Choices

Choice (4) Response

a.

Solid formed

b.

Energy change

c.

Color change

d.

All a. , b. and c. are correct

Question number: 592

» Magnetic Effects of Electric Current

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MCQ▾

Question

Consider the following statements. Advantage of nuclear fusion is

(i) Production of large amount of useful energy from a very small amount of nuclear fuel

(ii) Does not produce greenhouse gases like

Which of the above statements are correct?

Choices

Choice (4) Response

a.

Only statement (i) is correct

b.

Only statement (ii) is correct

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague