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- Multiple ChoicePlease save your changes before editing any questions.
What happens to litmus paper in acidic solutions?
Red litmus turns blue
Blue litmus turns red
Yellow litmus turns green
- Multiple ChoicePlease save your changes before editing any questions.
Universal indicator solution is usually green to begin with. What does this mean?
It is acidic
It is alkaline
It is neutral
- Multiple ChoicePlease save your changes before editing any questions.
A liquid has a pH of 8. What does this mean?
It is weakly acidic
It is weakly alkaline
It is neutral
- Multiple ChoicePlease save your changes before editing any questions.
A liquid has a pH of 1. What does this mean?
It must be sodium hydroxide solution
It is strongly acidic
It is weakly acidic
- Multiple ChoicePlease save your changes before editing any questions.
Which acid could be used to make ammonium nitrate (a type of fertiliser)? (HINT look at the name carefully!)
Hydrochloric acid
Sulfuric acid
Nitric acid
- Multiple ChoicePlease save your changes before editing any questions.
Farmers use lime to neutralise their acidic soils. What sort of substance is lime?
A base
An acid
A sharp tasting drink