NSO Level 1- Science Olympiad (SOF) Class 10: Questions 823 - 829 of 986

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Passage

Direction: Read the following passage and answer the question.

A Metal is shiny, greyish metal that rusts in damp air.

Metal is an enigma-it rusts easily, yet it is the most important of all metals. Most is used to manufacture steel, used in civil engineering (reinforced concrete, girders etc. ) and in manufacturing.

Other hand non-metal most common appears as yellow crystals or powder.

Non-metal is used in the vulcanization of black rubber, as a fungicide and in black gunpowder.

Question number: 823 (1 of 3 Based on Passage) Show Passage

» Metals and Non - Metals

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MCQ▾

Question

Among the following choices, elements that have low density, poor conductors of electricity are

Choices

Choice (4)Response

a.

Non-metal

b.

Metal

c.

Question does not provide sufficient data or is vague

d.

All of the above

Question number: 824 (2 of 3 Based on Passage) Show Passage

» Metals and Non - Metals

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MCQ▾

Question

Among the following choices, the metal is

Choices

Choice (4)Response

a.

Potassium

b.

Iron

c.

Calcium

d.

Magnesium

Question number: 825 (3 of 3 Based on Passage) Show Passage

» Metals and Non - Metals

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MCQ▾

Question

Among the following choices, the non-metal is

Choices

Choice (4)Response

a.

Helium

b.

Sulphur

c.

Neon

d.

Carbon

Question number: 826

» Acids, Bases and Salts

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MCQ▾

Question

Three Students were given colorless liquids X, Y and Z of sea water, blood and a mixture of sea water and blood respectively. After testing liquids with pH paper, colour change for a mixture of seawater and blood on pH paper is

Choices

Choice (4)Response

a.

Turned Blue

b.

Turned Green

c.

No Changes

d.

Turned Red

Question number: 827

» Chemical Reactions and Equation

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MCQ▾

Question

The reaction represents

Choices

Choice (4)Response

a.

Combination

b.

Reduction

c.

Decomposition

d.

Oxidation

Question number: 828

» Metals and Non - Metals

Edit
MCQ▾

Question

Which is not an example of native elements that are semimetals?

Choices

Choice (4)Response

a.

Antimony

b.

Tellurium

c.

Arsenic

d.

Titanium

Question number: 829

» Metals and Non - Metals

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MCQ▾

Question

Strongest natural metal is

Choices

Choice (4)Response

a.

Tungsten

b.

Steel

c.

Gold

d.

Brasses

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