Question # 1

Formation profess of Ammonia by the combination Hydrogen and Nitrogen was given by:

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Dalton

Thomson

Haber

Waage

Hydrogenation of alkenes and alkynes may be carried out at room temperature in the presence of catalyst:

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Pt or Pd

Ni

Zn

Fe2O3

Which of one the following is Lewis base?

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BF3

H+

NH3

Ag+

Nucleic acids made up of long chain of.

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Nucleotide

Fatty acids

Amino acid

None of them

Which gas is emitted due to volcanic eruption?

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CO₂

SO₃

NO₂

H₂

Red hair contains compound of.

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Iron

copper

titanium

Molybdenum

The meaning of latin word acidus is.

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Sweet

Tasteless

Salty

Sour

According to Bronsted and Lowry concept a base is a substance that can accept.

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Proton

Electron pair

Neutron

Electron

Hookworm is a parasite that infects the:

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large intestine

small intestine

stomach

liver

A base is a substance which neutralizes and acid. Which of these substances is not a base?

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aqueous ammonia

Sodium chloride

Sodium carbonate

Calcium oxide

When the magnitude of Kc is very large it indicates.

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Reaction mixture consist of almost all products.

Reaction mixture consist of almost all reactants.

Reaction has not gone to completion

Reaction mixture has negligible products.

The alkanes consisting of C₅ to C₁₀

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gases

liquids

solid

plasma

What is the percentage of carbon in anthracite?

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60%

70%

80%

90%

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