
Gas Tests and Reactions
Interactive Video
•
Chemistry, Science
•
7th - 10th Grade
•
Hard

Emma Peterson
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it difficult to identify gases based on their appearance?
Gases are always visible.
Gases are often colorful and fragrant.
Gases are usually colorless and odorless.
Gases have a distinct taste.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What sound indicates the presence of hydrogen when tested with a lit splint?
No sound
A squeaky pop
A soft hiss
A loud bang
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to a glowing splint in the presence of oxygen?
It extinguishes
It relights
It changes color
It remains unchanged
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does hydrogen produce a pop sound when ignited?
It is due to the gas being colorless.
It is a reaction with nitrogen.
It is a result of a mini explosion.
It is because hydrogen is non-flammable.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the concentration of oxygen in air compared to the reaction vessel?
10% in air
5% in air
21% in air
50% in air
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when carbon dioxide is bubbled through lime water?
The lime water turns red.
The lime water turns blue.
The lime water turns milky.
The lime water turns clear.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What color change occurs to damp red litmus paper in the presence of ammonia?
It turns blue.
It remains red.
It turns green.
It turns yellow.
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