Consider the following statements about mixture : A substance can be

Consider the following statements about mixture :

A substance can be separated into other kinds of matter by any physical process.
Dissolved sodium chloride can be separated from water by the physical process of evaporation.

Which of the statements given above is/are correct ?

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1 only

2 only

Both 1 and 2

Neither 1 nor 2

Answer is Right!

Answer is Wrong!

This question was previously asked in

UPSC CDS-2 – 2019

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Statement 1 is incorrect. A substance (like an element or compound) cannot be separated into other kinds of matter by *any* physical process. Elements cannot be broken down by physical or chemical means. Compounds can be broken down into elements, but only by chemical processes (like electrolysis or decomposition), not physical processes. Mixtures, however, can be separated into their components by physical processes. The statement uses the word “substance” incorrectly in this context.
Statement 2 is correct. Dissolved sodium chloride (salt) in water forms a mixture. Water can be separated from the salt by evaporation, which is a physical process. The water turns into vapor and leaves the salt behind as a solid residue.

Physical processes are used to separate components of mixtures based on their physical properties. Chemical processes are required to break down compounds into simpler substances.

Other physical methods for separating mixtures include filtration, distillation, chromatography, decantation, and magnetism. The choice of method depends on the specific properties of the components in the mixture.

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