Question

D. Select the odd one out giving reason.
a. Wood, charcoal, coke, iron nails.
b. Petrol, diesel, kerosene, coke.
Smoke, flame, fuel, heat.
d. Natural gas, LPG, CNG, gasoline.
e. Fuel, oxygen, ignition temperature, water.
​

Answer 1

Answer:

Explanation:

a.iron nails as it is not inflammable

b.coke as it is a product of coal

c.fuel as all others are results of combustion

d.gasoline as all others are used as domestic fuels

e.water as only this isn't required for combustion

Answer 2

Answer:

a: iron nails. coz its metal nd others are wood

b: coke.coz others are fuels and coke is wood ash

c: fuel. others are heat related whereas fuel is fossil fuel

d: ignition temperature. coz others r materials whereas ignition temperature is a reading