Question # 1

Cyclobutane structure is categorized under

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Aromatic compounds

Aliphatic compounds

Alicyclic compounds

Heterocyclic compounds

Name the compound, which shows geometric isomerism

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I-bromo-2-chloropropene

2.3-dimethy lpropene

2-pentene

Both A & B

CO₂gas is dissolved in water due

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dipole-dipole interactions

higher molecular mass of CO₂

ion dipole attractive forces

hydrogen bonding

SO₂produced by volcanoes is about

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75%

67%

69%

70%

The molecules of air don't settle down. This is due to:

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non-polar nature of gases

different molar mass

elastic collisions of gas molecules

pressure of dust particles in air

The reaction between fat and NaOH is called

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Esterification

Hydrogenolysis

Fermentation

Sponification

Dalton's law finds its application during the process of:

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Digestion

Respiration

Reproduction

All of above

Peroxyacetylnitrate (PAN) is an irritant to human beings and it affects:

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Eyes

Ears

Stomach

Nose

Which of following is NOT use the polyvinylacetate (PVA)

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An adhesive material

Binder for emulsion

Used as gramophone

None as these

Which of the following is not molecular crystal

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Sugar

Iodine

Ice

Graphite

Choose the crop for which ammonium nitrate is not used:

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paddy rise

cotton

wheat

sugar cane

Which compound is both chiral and acidic

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Ground and surface waters are contaminated and become polluted due to the human activity. Which human activity will bot cause water pollution

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Live stock waste

Agricultural pesticides

Oil breaks and spills

All of the above

The addition of HCN to carbonyl compounds is an example of

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Nucleopihlic substituion

Electrophilic addition

Nueleophilic addition

Electrophilic substitution

A white precipitate ofsilver chlorideimmediately formed on additionof :

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Silver nitrate solution to sodium chloride solution.

Silver chloride solution to sodium nitrate solution.

Silver nitrate solution to potassium chloride solution

Silver nitrate solution to hydrogen chloride solution.

For a given process, the heat changes at constant pressure (q_p) and at constant volume (q_v) are related to each other as

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q_p= q_v

q_p< q_v

q_p= qv/2

Grignard's reagent is

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Alkyl halide

Magnesium halide

Alkyl magnesium halide

Ethereal solution of an alkyl halide

The test used for the detection of ethanol in the mouth of a drunk driver is that the drunk driver is asked to blow air from mouth into a solution of K₂Cr₂O₇and H₂SO₄. The colour changes, if the driver is drunk

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From orange to green

From pink to green

From orange to colorless

From pink to colorless

Absolute alcohol is obtained by adding rectified apirit in alcohol:

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Water

Na₂CO₃

NaOH

CaO

Which of the following compounds will react with reagent ?

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CH₃ CO H

CH₃ CO CH₃

CH_{3 COOH}

CH₃CO CH₂CH₃

Setting time of cement is controlled by adding:

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Epsom

Gypsom

CaCO₃

CaCl₂

The Electro-negatively difference for ionic bond must be greater than

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1.6

1.7

1.8

1.0

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