Ramu wants to separate things based on their solubility in water. Identify the pair of substances containing one soluble and one insoluble substance.
A
Soap and Pepper
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B
Salt and Lemon juice
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C
Sugar and Salt
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D
Chalk powder and sand
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Solution
The correct option is ASoap and Pepper Soap is soluble and pepper is insoluble in water. Salt, lemon juice, sugar and salt are soluble in water whereas chalk powder and sand are insoluble in water.