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- 1. Multiple Choice
Magnesium reacts with oxygen to make
magnesium oxide / basic in nature
magnesium oxide / acidic in nature
- 2. Multiple Choice
When sodium reacts with water it produces ___________
hydrogen
carbon dioxide
- 3. Multiple Choice
The metal oxides which dissolve in water are called
Alkali
Acid solution
- 4. Multiple Choice
Metal oxides reacts with acids and form corresponding salt and water .The reaction is called ____________
Neutralization reaction
Acid - base reaction
- 5. Multiple Choice
Metal oxides which show both the properties of acids and base are called
Amphoteric oxides
Metamorphic
- 6. Multiple Choice
Sodium is kept in the oil in Lab .
because it is highly reactive
because its really soft
- 7. Multiple Choice
When sodium reacts with water it starts floating
because hydrogen formed sticks to its surface and makes it less dense
because it is less dense than water
- 8. Multiple Choice
Sodium and potassium are highly reactive .
yes
no
- 9. Multiple Choice
Nitric acid does not produce hydrogen gas when reacts with metals because
its oxidising agent
its reducing agent
- 10. Multiple Choice
sodium and potassium react vigorously with dilute hydrochloric acid . According to reactivity which metal will produce more bubbles with high temperature
sodium
potassium
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