NSTSE (National Science Talent Search Exam- Unified Council) Class 6: Questions 1811 - 1818 of 2029

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Question number: 1811

» Chemistry » Air Around Us

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MCQ▾

Question

Burning needs gas to burn.

Choices

Choice (4)Response

a.

Oxygen

b.

Nitrogen

c.

Question does not provide sufficient data or is vague

d.

None of the above

Question number: 1812

» Chemistry » Water

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MCQ▾

Question

What will be the color of water when calcium is gently dropped on cold water?

Choices

Choice (4)Response

a.

Turns it lime yellow

b.

Turns it red

c.

Turns it blue

d.

Turns it milky

Question number: 1813

» Chemistry » Air Around Us

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MCQ▾

Question

Mercury causes disease

Choices

Choice (4)Response

a.

Minamata

b.

Brain damage

c.

Mental problem

d.

All a. , b. and c. are correct

Question number: 1814

» Chemistry » Sorting Materials into Groups

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MCQ▾

Question

Alcohol is in water

Choices

Choice (4)Response

a.

Miscible

b.

Filtered

c.

Immiscible

d.

All of the above

Question number: 1815

» Chemistry » Air Around Us

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MCQ▾

Question

Who discovered mephitic air?

Choices

Choice (4)Response

a.

Antoine Lavoisier

b.

Daniel Rutherford

c.

Joseph Priestly

d.

Question does not provide sufficient data or is vague

Question number: 1816

» Chemistry » Water

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MCQ▾

Question

Why potassium kept in kerosene oil?

Choices

Choice (4)Response

a.

It turns its color

b.

It is poison

c.

It forms oxygen

d.

It catches fire

Question number: 1817

» Chemistry » Air Around Us

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MCQ▾

Question

Name the gas used to fill the weather observation balloons.

Choices

Choice (4)Response

a.

Helium

b.

Hydrogen

c.

Inert Gas

d.

Nitrogen

Question number: 1818

» Chemistry » Sorting Materials into Groups

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MCQ▾

Question

Which of the following is an immiscible liquid?

Choices

Choice (4)Response

a.

Pure water

b.

Milk

c.

Salt water

d.

Oil

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