Question

State true or false ,
1. Alcohol , CNG and LPG are inflammable substances ( )
2. Greater the calorific value , better is the fuel ( )
3. Middle zone is the hottest zone of a flame ( )
4. The substances which vaporize during burning , give flame ( )​

Answer 1

Explanation:

1. True

2.True

3. false.

4.False

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Answer 2

1. true
2. false
3. true
4. true

hopefully it help you mark me BRAINLIEST