NSO Level 1- Science Olympiad (SOF) Class 8: Questions 435 - 441 of 1175

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Question 435

Question

MCQ▾

One of endangered species of Indian medicinal plants is that of

Choices

Choice (4)Response

a.

Nepenthes

b.

Garlic

c.

Ocimum

d.

Podophyllum

Question 436

Question

Matching-Pair▾

Find matching pair:

Choices

Choice (4)Response

a.

Kaziranga

Musk deer

b.

Gir

Lion

c.

Sunderban

Rhinoceres

d.

None of the above

Question 437

Question

MCQ▾

Metals like iron, copper and aluminium are used to make cookware. Which Property of metals is used here?

Choices

Choice (4)Response

a.

Hardness

b.

Malleability

c.

Conductivity

d.

All a., b. and c. are correct

Question 438

Question

MCQ▾

Metals are not used as handles in cook wares. Which property of metals is used here?

Choices

Choice (4)Response

a.

Metals are good conductors of heat and electricity

b.

Metals are hard

c.

Metals are malleable

d.

None of the above

Passage

Megha got a magnesium ribbon from the science lab. She burnt it, took the white ash and mixed it in water. Then she tested the solution with a litmus paper. Red litmus paper turned blue. She assumed that the ash is basic in nature.

Question 439 (1 of 3 Based on Passage)

Question

MCQ▾

The chemical reaction that took place in the experiment was

Choices

Choice (4)Response

a.

b.

c.

d.

Question 440 (2 of 3 Based on Passage)

Question

MCQ▾

The white ash referred in the experiment is

Choices

Choice (4)Response

a.

Carbon dioxide

b.

Magnesium Oxide

c.

Magnesium carbonate

d.

Magnesium dioxide

Question 441 (3 of 3 Based on Passage)

Question

MCQ▾

Which chemical property of metals is verified here?

Choices

Choice (4)Response

a.

Metals react with oxygen to form metallic oxides.

b.

Metallic oxides are basic in nature.

c.

Both a. and b. are correct

d.

None of the above

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