Gas Chemistry

Gas Chemistry

4th Grade

15 Qs

quiz-placeholder

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Gas Chemistry

Gas Chemistry

Assessment

Quiz

Chemistry

4th Grade

Hard

Created by

Rosemary Matthews

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the approximate percentage of nitrogen in the Earth's atmosphere?

21%

78%

1%

0.04%

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which gas in the atmosphere is known for its strong triple covalent bond, making it unreactive?

Oxygen

Carbon dioxide

Nitrogen

Argon

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main use of nitrogen in food packaging?

To add flavour

To prevent spoilage

To increase weight

To add colour

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the test for ammonia gas?

It turns limewater milky

It forms white smoke with concentrated hydrochloric acid

It burns with a blue flame

It changes litmus paper to red

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which metal is commonly used in the laboratory preparation of hydrogen gas?

Copper

Zinc

Iron

Magnesium

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main use of hydrogen in weather balloons?

To provide weight

To act as a coolant

To lift the balloon

To add colour

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is oxygen gas commonly prepared in the laboratory?

By heating calcium carbonate

By the catalytic decomposition of hydrogen peroxide

By reacting zinc with hydrochloric acid

By burning magnesium

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