Question
Lime is used to treat an industrial waste.
Which change occurs in the treatment?
Answer/Explanation
Ans:
A
Question
Which piece of apparatus is used to measure variable quantities of liquid in a titration?
Answer/Explanation
Ans:C
Question
P, Q, R and S are pieces of apparatus.
Which row describes the correct apparatus for the measurement made?
Answer/Explanation
Ans: A
Question
The four pieces of apparatus shown below are used in chemical experiments.
Which statement about the apparatus is correct?
- The burette measures the volume of liquid added in a titration.
- The measuring cylinder measures the mass of a substance used in an experiment.
- The pipette measures the volume of gas given off in a reaction.
- The thermometer measures the density of a solution.
Answer/Explanation
Ans:
A
Question
The diagram shows two substances, X and Y, being heated together.
The Universal Indicator paper turns blue during the experiment.
What are substances X and Y?
A ammonium nitrate and hydrochloric acid
B ammonium nitrate and sodium hydroxide
C sodium carbonate and hydrochloric acid
D sodium carbonate and sodium hydroxide
Answer/Explanation
Ans: B