Number of incorrect statements are : (A) Petrol and diesel has replaced CNG as fuel.
(B) Lignite is the most inferior quality coal.
(C) Products obtained by destructive distillation of coal are called petrochemicals.
(D) Ethyl mercaptan is added to detect the smell of LPG.
(E) Coal is a source of thermal energy.
(F) Natural gas is a mixture of CO and H2.(G) Diesel is used as a fuel for generators. (H) Coal is known as black gold. (I) Coke is a non-volatile substance.
(Q2)
How many of the following statements are correct?
(A) Burning of crackers is an example of spontaneous combustion.
(B) Carbon monoxide is a poisonous gas.
(C) Sulphur dioxide gas is responsible for acid rain.
(D) Hydrogen gas is a fuel with low calorific value
(E) Dark inner zone is coldest part of flame
(F) Middle zone of flame is luminous zone.
(G) White phosphorus is kept in kerosene oil.
(H) LPG is a liquid fuel.
(I) Glass is a combustible substance.
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