Question # 1

Which gas is also known as life gas for plants.

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CO

CO₂

O₂

NO₂

Gypsum in water is.

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Sparingly soluble

Insoluble

Highly soluble

None of them

Petroleum fraction having composition C₇to C₁₀IS called

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Petroleum gas

Petroleum Ether

Kerosine oil

Gasoline or petrol

Nucleic acids made up of long chain of.

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Nucleotide

Fatty acids

Amino acid

None of them

Composition of carbon in the diesel oil.

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C₇-C₁₀

C₁₀-C₁₂

C₁₃-C₁₅

C₁₅-C₁₈

A reaction between an acid and base produce.

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Salt and water

Salt and gas

Salt and acid

Salt and bases

Rapid growth of algae in water bodies in because of detergent having.

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Carbonat salt

Sulphonic acid

Sulphat salt

Phosphate salt

Which one of the following is not the characteristics of monosaccharide?

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White crystalline solids

Soluble in water

Hydrolysable

Reducing is nature

Formula of soda ash is.

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Na₂CO₃

NaHCO₃

Na₂SO₄

Na₃PO₄

In dry cleaning, which chemical is used.

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Chloroform

Carbon tetachloride

Ecetaldehyde

Ethanol

Which of the following thing is a lewis base?

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NH₃

BF₃

H⁺

AlCl₃

Main component of natural gas is

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Methane

Propane

Butane

Propene

The value of K_c depends on.

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Temperature

Pressure

Volume

Atmosphere

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