Thumb on its mouth.OBSERVATIONS&Volume of water samples taken in test

1.	Thumb on its mouth.OBSERVATIONS&Volume of water samples taken in test tube =Volume of soap solution added to each test tube =mLmLS.No.Water sampleInitial length (withoutshaking) in cm.Final length (aftershaking) (in cm)Length of thefoam produced (cm)3.A. Distilled waterB. Underground waterC. Water containingCa(HCO3)2D. Water containingCaCl₂E Water containingCaSO45.
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Thumb on its mouth.OBSERVATIONS&Volume of water samples taken in test tube =Volume of soap solution added to each test tube =mLmLS.No.Water sampleInitial length (withoutshaking) in cm.Final length (aftershaking) (in cm)Length of thefoam produced (cm)3.A. Distilled waterB. Underground waterC. Water containingCa(HCO3)2D. Water containingCaCl₂E Water containingCaSO45.

Answer»

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