Question

1. Write the name of flame used in charcoal cavity test. Why?​

Answer 1

Answer:

Blow pipe reducing flame

Explanation:

charcoal cavity performed by the mixture given salt with sodium carbonate and heating the mixture of the block on the charcoal with the help of blow pipe reducing flame.

Answer 2

Reducing flames are used in the charcoal cavity because these flames (yellow flames) don't provide much heat.

(As reduce heat due to reducing agent)

As less heat will result in less danger and less accidents.

hope it helps...