Question # 1

Which pollutant is not found in car exhaust gases?

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CO

O₃

NO₂

SO₃

Carbon Tetra chloride is used in .

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Fertilizer

Dry cleaning

Metallurgy

Anesthesia

Uric Acid is present in

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Apple

Fats

Urine

Grapes

Open chain compounds are also called:

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aliphatic compounds

alicyclic compounds

aromatic compounds

hydrocarbons

Coal gas is mixture of

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CO and CH₄

CO . CH₄. CO₂

CO, CH₄, H₂

CO, H₂ and CO₂

The process which convert vegetable oil into banaspati ghee called.

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Hydrogenation

Halogenation

a and b

None of these

How many percent of natural gas is consisted of methane.

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60%

70%

80%

85%

Molecular formula of butane is

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C₄H₈

C₄H₁₀

C₄H₁₂

C₄H₆

Blast furnace usually used for the metallurgy of.

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Iron

Copper

Aluminum

Both a and b

Which acid is found in sour milk?

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`Formic acid

Lacitc acid

Citric acid

Butric acid

Gypsum in water is.

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Sparingly soluble

Insoluble

Highly soluble

None of them

Global warming causes rising of the sea level. The cause of global warming is.

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CO₂ gas.

SO₂gas.

NO₂gases.

O₃gas.

Acid reacting with metal sulphides, liberate gas.

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Oxygen

Hydrogen

Hydrogen Sulphide

Hydrogen Oxide

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