Question

Question 38
Complete the crossword Fig. 6.1 with the help of the clues :

Across
1. Non-metal which catches fire if exposed to air. (10)
3. The lowest temperature at which a substance catches fire is called its ___ temperature. (8)
5. The most common fire extinguisher. (5)

Down
4. Petrol is used as a ___ in automobiles. (4)
6. It is as hard as stone and black in colour. (4)

Answer 1