Question # 1

The water which produces good lather with soap is called:

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soft water

hard water

heavy water

typical water

Which gas like a glass wall of g green house:

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CO

O2

CO2

N2

Which is simplest alkane?

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CH₄

C₂H₈

C₂H₂

C₂H₄

Which is disaccharide?

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Glucose

Fructose

Sucrose

Starch

You want to dry a gas which one of the following salt you will use?

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CaCl₂

NaCl

CaO

Na₂SIO₃

Which acid is used for food preservation?

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Hydrochloric acid

Benzoic acid

Sulphuric acid

Nitric acid.

Oxidation of alkenes produce.

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Glyoxal

Glycol

Oxalic acid

Formic acid

Carbohydrates are synthesized by plants through.

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Respiration

Photosynthesis

Dehydrateion

Evaporation

Which organ cause to function during Jaundice?

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Liver

Kindney

Stomach

Large intestine.

Natural gas is 85% methane, It is used to make the follwing except.

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Carbon black

Ethane

Propane

Both b and c

Incomplete combustion of alkanes produce.

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Carbon dixoide only

Carbon monoxide only

Carbon monoxide carbon black and water

Carbon dioxide and carbon black

Which of the following thing is a lewis base?

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NH₃

BF₃

H⁺

AlCl₃

The surface tension of water is:

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very low

moderate

high

zero

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