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Jouer Froggy Jumps
1. Which gas will release when metals reacts with cold water?
A
Oxygen
B
Hydrogen
C
Carbon monoxide
2. What is the formula for potassium hydroxide?
A
KH
B
3KH
C
KOH
3. Non-metals can easily react with water.
A
True
B
False
C
Can not predict
4. Why phosphorus is stored in water?
A
Phosphorus reacts violently with air.
B
Phosphorus reacts violently with water
C
Phosphorus does not react with air
5. Which metal is stored in kerosene?
A
Zinc
B
Sodium
C
Chlorine
6. In the activity series, the metals are arranged in the decreasing order of their reactivity.
A
True
B
False
C
Can't predict
7. Carbon dioxide will react with water to form _______
A
carbon monoxide
B
carbonic acid
C
solid carbon
8. Which element will NOT react with cold water?
A
Sodium
B
Iron
C
Potassium
9. Metal will reacts with steam to form _______
A
Metal oxide
B
Metal hydrogen
C
Metal hydride