Chemistry - Study Mode

[#1081] Domestic cooking gas consists mostly of
Correct Answer

(B) Liquified butane and isobutane

Explanation

Solution: Domestic cooking gas consists mostly of Liquified butane and isobutane.

[#1082] Which one of the following is known as the 'brown coal'?
Correct Answer

(D) Lignite

Explanation

Solution: Lignite, often referred to as brown coal, is a soft, brown, combustible, sedimentary rock formed from naturally compressed peat.

[#1083] L.P.G. is mostly liquefied
Correct Answer

(C) Butane

Explanation

Solution: L.P.G. is mostly liquefied butane.

[#1084] Which one of the following is not coal variety?
Correct Answer

(C) Dolomite

Explanation

Solution: Dolomite is not coal variety.

[#1085] Which of the following is used to increase the anti-knocking property of petrol ?
Correct Answer

(B) Tetraethyl lead

Explanation

Solution: An anti-knocking agent is the substance which is used to reduce the engine knocking. It increases the octane number of the fuel. It helps in auto-ignition by raising the temperature and pressure. TEL is tetraethyl Lead which is used as an anti-knocking compound.