Question

0.16 Suppose you are asked to boil a given quantity of water using cow dung cake, coal
and LPG as fuels. Which fuel would you prefer? Give your reason.
Q.17 Define calorific value of a fuel. Though hydrogen has got highest calorific value but
it is not used as a domestic fuel. Why?
Q.18 Make a labeled diagram of a candle flame.
Q.19 Name various types of combustion. Give example of each type?
Q.20 Differentiate between.
(a) combustible and non combustible substances
(b) Complete combustion and incomplete combustion.
(c) Luminous and Non=Luminous flames.

Plz give answers clearly and plz note the question number that u have answered ☺️☺️​

Answer 1

Answer:

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