Science- Combustion and Flame

Release of large amount of gas under pressure due to sudden reaction ✘ Release of large amount of heat ✘ Release of large amount of light ✘ None of the above ✔

The maximum temperature at which a substance catches fire ✘ The minimum temperature at which a substance catches fire ✘ The temperature of burning substance ✘ The temperature in the substance when fire if put off ✔

The person suddenly feels cold ✘ To hide the burnt body parts ✘ The person's clothes gets burnt ✘ To reduce air supply and put fire off ✔

Both heat and light is produced ✘ Only heat is produced ✘ Only light is produced ✘ All are correct ✔

Water covers oil and oil burns under water layer which may not be noticeable ✘ Water is heavier than oil / petrol and so remains below the oil layer which continues to burn ✘ Water get mixed with oil and increases fire ✘ Water gets evaporated ✔

Paper is not inflamable ✘ Paper gets wet ✘ Due to water the ignition temperature of paper is not reached ✘ This is not possible ✔

Inflammable substances ✘ Flaming substance ✘ Fire proof substance ✘ None of the above ✔

1 litre ✘ 1 Kg ✘ 1 milli litre ✘ 1 gram ✔

Solid only ✘ Solid,Liquid or gas ✘ Liquid only ✘ Gas only ✔

Conduction ✘ Conjunction ✘ Combustion ✘ Confusion ✔