Question

Which of the following is a pure substance:

**Kerosene oil
**Steel
**Sodium chloride
**Vulcanized rebber​

Answer 1

Answer:

kerosene oil......... is the correct answer.

Answer 2

Answer:

Sodium chloride is a pure substance.

The correct answer is option (c) Sodium chloride.

Explanation:

Sodium chloride is a pure substance.

Pure substances:

Distilled water, diamond, graphite, and raw rubber.

Mixtures:

Curd, ice cream, kerosene oil, cooking oil, steel, vulcanized rubber, solder wire (an alloy of lead and tin).  

The two components sodium and chlorine have connected by chemical reaction to constitute sodium chloride (NaCl) which exists as a chemical compound. Since these elements cannot be isolated from each other by any physical procedure, sodium chloride exists as a pure substance.

Therefore, the correct answer is an option (c) Sodium chloride.

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