Question # 1

Which of the following is a poisonous gas.

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Oxygen

Ozone

Nitrogen

Carbon dioxide

Which one of the following is not air pollutants?

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N₂

CO

NO₂

O₂

Inland water includes.

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River

Lakes

Streams

All of them

Molecular formula of butyne is .

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C₄H₆

C₃H₄

C₄H₇

C₄H₈

_______ is the king of chemicals.

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Hydrochloric acid

Nitric Acid

Sulphuric acid

Phosphoric acid

Which one of the following statements about glucose and sucrose is incorrect.

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Soluble in water

Naturally occuring.

Carbohydrates

Disaccharides

Sodium carbonate is manufactured by.

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Haber's process

Ostwald's process

Solvay's process

All

When CaCO_3,.is heated in an open flask, it decomposes to form calcium oxides and .

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O₂

CO

CO₂

CO₃

Lipids are macromolecules made up of.

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Fetty acids

Amino acids

Nucleotides

None of them

The energy provided by carbohydrates in per gram.

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17 KJ

21 KJ

35 KJ

10 KJ

The acid which is called king of chemicals.

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Sulphuric Acid

Nitric Acid

Hydrochloric acid

Acetic acid

Main component of natural gas is

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Methane

propane

Butane

Propene

Number of vitamins in vitamin B complex is.

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10

8

6

12

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