Question

Which of these mixtures cannot be separated by serving?

Option are -
1. Bran from flour
2. Pebbles from Sand
3. Stones from rice
4. Chalk powder from Salt​

Answer 1

→Answers :

→Pure substance, any compound or element, can't be separated into different atoms by physical methods.

A chemical reaction must occur to separate a compound into its different atoms/elements.

→Answer is

4) → Chalk powder from Salt.