The flow chart gives the techniques a student adopted to separate the
constituents of a mixture. What could substance Q and R respectively
be
sugar and chalk powder
Chalk powder and sugar
aand
Answers
Answer:
Sand can be removed by filtration mixture of sugar + sand+water.
And sugar can be removed by the process of distillation from the mixture of sugar+ water. But glass, oxygen, and rice cannot be separated by distillation and filtration.
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Complete and Correct question:
Direction: The following flow chart which gives the techniques a student adopted to separate the constituents of a mixture.
What could the mixture be?
a)Water + sand + glass
b)Oxygen + hydrogen + salt
c)Stones + rice + water
d)Chalk powder + sugar + water
Answer:
The correct option is d) chalk powder+ sugar+ water.
Explanation:
The chalk powder will get separated from sugar and water through filtration. Then by distillation sugar gets separated from water.
Explanation for wrong options:
a)Water + sand + glass
Through filtration both sand and glass will be separated out as the particles of both sand and glass are big. Then distillation is not required.
b)Oxygen + hydrogen + salt
In this nothing can be separated out through filtration as both Salt and hydrogen are dissolved in water.
c)Stones + rice + water
Since the particles of both rice and stones are big enough it will get separated through filtration and there's no need of distillation.
Hence d)Chalk powder + sugar + water is the correct answer.
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