Question # 1

Vegetable oils are

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Polyesters

Glycerides of unsaturated fatty acids

Essential oils

Fatty acids

Which compound is called a universal solvent.

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H2O

CH2OH

C2H5OH

CH5-O-CH3

Which group when attached with benzene increases electron density of ring.

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-COOH

-NO

-CHO

-CH3

The Plastic which become soft and melt on heating and can be molded and remolded are called.

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Thermoplastic

Thermosetting plastic

Resin

Melamine

The mineral CaSO₄.2H₂O has the general name

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Dolomite

Gypsum

Calcite

Epsom Salt

Which acid can not be stored in glass bottles.

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HCl

HF

H2SO4

HNO3

When carbon di oxide is bubbled through lime water, white precipitate is formed This precipitate is.

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COCl2

H2CO3

CaO

CaCO3

Pulp is washed to remove lignin from it. Due to the presence of lignin in pulp paper becomes.

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Soft

Brittle

Acidic

Colourless

The number of acidic hydrogen present in 1- Propyne is

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1

2

3

4

The presence of a double bond in a compound is the sign of.

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Saturation

Unsaturation

Substitution

None of these

Which substance shows very weak hydrogen bonding with water.

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Methanol

Ethanol

Diethyl ether

Benzene

Main source of aromatic compound is

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Petroleum

Coaltar

Living organisms

Dead marine animals

Phosphorus helps the growth of

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Root

Leaf

Steam

Seed

Which amino acid is present in cheese

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Glycine

Alanine

Tyrosine

Valine

Which of the following is an ester.

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Soap

Starch

PVC

Dacron

Which raw material is used for preparation of bleaching powder.

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Cl2 and H2O

Cl2 and Lime

Cl2 and HOCl

HCl and Lime

Cyclic structure of benzene was proposed by

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Dewar

Faraday

Down

Kekule

Ethanol can be converted into ethanoic acid by

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Hydrogenation

Hydration

Oxidation

Fermentation

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