Question

V. Give Reasons for the following statements: 1) Methane and LPG are considered as ideal fuels. 2) Some combustible substances do not burn at room temperature. 3) It is dangerous to burn coal in a closed room where people are sitting, 4) The dark zone of candle flame is coolest part of it. 5) Fuels with lower ignition temperature should be stored with utmost care. 6) When a burning charcoal piece is covered with a glass jar then the burning of the piece stops. 7) Charcoal does not produce flame.​

Answer 1

Answer:

The water heated by Ramesh will get heated in a shorter time because he kept his beaker near the hottest zone of the flame.