Simple Chemical Tests for Gases

Simple Chemical Tests for Gases

Assessment

Interactive Video

Chemistry, Science

University

Hard

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The video tutorial explains how to test for various gases: hydrogen, oxygen, carbon dioxide, chlorine, and ammonia. Each gas has a specific test: hydrogen ignites with a squeaky pop, oxygen reignites a glowing splint, carbon dioxide turns lime water cloudy, chlorine turns blue litmus paper red before bleaching it, and ammonia turns red litmus paper blue. These tests help identify colorless and odorless gases quickly and easily.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What sound indicates the presence of hydrogen when using a splint?

A hissing noise

A squeaky pop

A loud bang

A crackling sound

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which gas will reignite a glowing splint?

Ammonia

Oxygen

Chlorine

Carbon dioxide

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to limewater when carbon dioxide is bubbled through it?

It remains unchanged

It turns cloudy

It becomes clear

It turns blue

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does chlorine affect damp blue litmus paper?

Turns it blue

Turns it red and then bleaches it

Turns it green

Leaves it unchanged

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What color change occurs when ammonia is tested with damp red litmus paper?

Blue to red

No change

Red to blue

Red to green