Multiple choice

The melting point and the boiling point of a pure substance vary according to

  1. type of flame used for healing.

  2. rate of increase is temperature.

  3. pressure applied.

  4. the shape of container used for heating.

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The melting and boiling point of a pure substance are fixed at a particular pressure. They vary with change is presses.