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Higher cetane number but lower octane number fuel is ideal for which of the following engines?

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Important Questions on Chemistry

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UPSC CAPF AC Paper - I
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Encyclopedia of General Science for General Competitions>Chapter 2 - Chemistry>Assessment>Q 241

Consider the following statements.

I. Liquified Natural Gas (LNG) is liquified under extremely cold temperatures and high pressure to facilitate storage of transportation in specially designed vessels.

II. First LNG terminal in India was built in Hassan.

III. Natural Gas Liquids (NGL) are separated from LPG and these include ethane, propane, butane and natural gasoline.

Which of the above statement(s) is/are correct?

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Encyclopedia of General Science for General Competitions>Chapter 2 - Chemistry>Assessment>Q 242

Statement I: Carbon, sulphur, magnesium etc., are combustible substances.

Statement II: Those substances which burn in the presence of oxygen are known as combustible substances.

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Encyclopedia of General Science for General Competitions>Chapter 2 - Chemistry>Assessment>Q 243
Combustion of a candle is a/an
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Encyclopedia of General Science for General Competitions>Chapter 2 - Chemistry>Assessment>Q 244
Which of the following gas is used in the fire extinguisher?
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Encyclopedia of General Science for General Competitions>Chapter 2 - Chemistry>Assessment>Q 245
The aliphatic hydrocarbon which contain double covalent bonds are known as alkenes. Alkenes are:
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Encyclopedia of General Science for General Competitions>Chapter 2 - Chemistry>Assessment>Q 246

Which of the following statements are correct about chloroform?

I. Liquid fuel.

II. Anaesthetic in nature.

III. Produces phosgene.

IV. Fire extinguisher.

MEDIUM
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Encyclopedia of General Science for General Competitions>Chapter 2 - Chemistry>Assessment>Q 247
The compounds having same molecular formula but differ in their structures are called:
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UPSC CAPF AC Paper - I
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Encyclopedia of General Science for General Competitions>Chapter 2 - Chemistry>Assessment>Q 248
The gas used for artificial ripening of green fruit is _____.