Science Class 5 Matter

Asked by AKSHAY GURU VARADHARAJAN · SRI CHAITANYA TECHNO SCHOOL, JAYANTI NAGAR.

In an experiment, a student added chalk powder, sugar and oxygen to water. He observed that some dissolved and some did not.
Arrange these substances in descending order of their solubility in water.

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A Sugar, oxygen, chalk powder
B Oxygen, sugar, chalk powder
C Chalk powder, sugar, oxygen
D Chalk powder, oxygen, sugar

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Answer: A. Sugar, oxygen, chalk powder

Sugar dissolves easily in large amounts. Oxygen dissolves only a little, but enough for fish to breathe. Chalk powder hardly dissolves and settles at the bottom. So from most to least soluble: sugar, oxygen, chalk powder.

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In an experiment, a student added chalk powder, sugar and oxygen to water. He observed that some dissolved and some did not. Arrange these substances in descending order of their solubility in water.

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In an experiment, a student added chalk powder, sugar and oxygen to water. He observed that some dissolved and some did not.
Arrange these substances in descending order of their solubility in water.