Question

il in the blanks
a) A fossil fuel which is hard as stone and black in colour is
b) It is a black thick liquid with an
unpleasant smell
=) A fuel used as motor fuel, aviation fuel, solvent for dry cleaning
4) It is the most clean fuel because it is less polluting.
e) Three essential requirements for producing fire are
and
The calorific value of a fuel is expressed in a unit called
) Calorific value of LPG is
KI/kg
) Oxides of sulphur and nitrogen dissolve in rain water and form acid, such rain is called​

Answer 1

Answer:

a coal.

b coal tar.

4.natural gas

e.heat oxygen and fuel.

---the calorific value of a fuel is expressed in a unit called kj/kg.

---oxidize of sulphur and nitrogen dissolve in rain water and formic acid such rain is called-axid rain.

and please try to to give the question in a perfect way .

thank you.

hope it helps you.

Answer 2

Answer:

a)coal

b)The black thick liquid with unpleasant smell is known as coal tar.

c)Petrol can be used as a motor fuel, aviation fuel and as solvent for dry cleaning.

d)Natural gas

e) (1)Heat oxygen and fuel and

(2)The calorific value of a fuel is

expressed in a unit called kilojoule per kilogram

f)calorific value of LPG is around 46MJ/kg or 12.78 kWh/kg

g)Acid rain