What are combustible substances ?
The substances that undergo combustion are called combustible substances. It may be solid liquid and gas.
Match the following option:
| A. Wood | (i) gaseous fuel |
| B. Iron nail | (ii) flame |
| C. L.P.G. | (iii) solid fuel |
| D. L.P.G. | (iv) combustible |
| E. Coal | (v) non-combustible |
What is the full form of CNG ?
What are fuels ?
The dark zone of candle flame is
outer zone of complete combustion
zone of partial combustion
inner Zone
none of the above
