Question # 1

Vital force theory was rejected by

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Berzelius

Kolbe

Wholer

Lavoiser

Which of the following process is used to separate insoluble particles from liquids?

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Separation

Filtration

Crystallization

Condensation

Natural fertilizer from plants and animals provide nitrogen

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1.5 kg

3.0 kg

4.5 kg

6 kg

Which is the most volatile compound?

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HI

HCI

HBr

HF

The mass of the neutron is of the order of

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10^-23 kg

10^-24 kg

10^-26 kg

10^-27 kg

2 g oxygen contains number of atoms equal to that in

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0.5 g of hydrogen

4 g of sulphur

7 g of nitrogen

2.3 g of sodium

Acetic anhydride is obtained form acetyl chloride by the reaction of

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P₂O₅

H₂SO₄

CH₃COONa

CH₃COCH₃

Potassium is kept in

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Water

Ammonia

alcohol

Kerosene

The main structure features of proteins is

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An ester linkage

An ether linkage

The peptide linkage

All

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