Question

two substances A and B combine to form another substance C .during the combination heat is evolved and C has properties different from those of A and B. identify C as element compound or mixture

Answer 1

C is a mixture . ......

Answer 2

The substance C is a COMPOUND.

- It is clearly mentioned that A and B are combining to form C, so C cannot be an element.

- Also, heat is evolved during this combination clearly suggesting that a chemical reaction is taking place.

- As the substance C has properties different from both A and B, so it cannot be a mixture of A and B.

- Hence, C is a compound as it is produced by the combination reaction of A and B and has different properties than both A and B.