NSO Level 1- Science Olympiad (SOF) Class 10: Questions 872 - 876 of 986

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Question number: 872

» Acids, Bases and Salts

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MCQ▾

Question

Which of the following is not a property of acid?

Choices

Choice (4) Response

a.

Feel Slippery

b.

Less than 7 pH

c.

Sour Taste

d.

Turn litmus Red

Question number: 873

» Metals and Non - Metals

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MCQ▾

Question

Read the given statements and mark the correct option.

Statement 1: Metal react with oxygen to form basic oxides

Statement 2: Non-metal produces sonorous sound when hit with hammer.

Choices

Choice (4) Response

a.

Statements 1 and 2 are true.

b.

Statements 1 and 2 are wrong.

c.

Only Statement 2 is true.

d.

Only Statement 1 is true.

Question number: 874

» Magnetic Effects of Electric Current

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MCQ▾

Question

Choose the correct option. Sources of magnetic fields are

(i) Natural and artificial magnets

(ii) Electromagnets

(iii) Alloy

(iv) Earth

Choices

Choice (4) Response

a.

(ii), (iii) and (iv)

b.

(i), (ii), (iii) and (iv)

c.

(i), (ii) and (iii)

d.

(i), (ii) and (iv)

Question number: 875

» Metals and Non - Metals

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MCQ▾

Question

Given

The most reactive and least reactive metal is

Choices

Choice (4) Response

a.

Na and Cu

b.

Fe and Sn

c.

Cu and Na

d.

Sn and Na

Question number: 876

» Our Environment and Its Management

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MCQ▾

Question

Select among the following the artificial self-sustaining ecosystem

(i) Mountains

(ii) Crop field

(iii) Grassland

(iv) Lake

(v) Park

(vi) Aquarium

(vii) Mangroves

Choices

Choice (4) Response

a.

(ii), (iii), (vi) and (vii)

b.

(ii), (v) and (vi)

c.

(iii), (vi) and (v)

d.

All of the above