Question # 1

I-Chloropropane has two isomers, it is an example of

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Chain isomerism

Position isomerism

Functional group isomerism

Metamerism

The chemist who synthesized urea from ammonium cyanate was

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Berzelius

Kolbe

Wholer

Lavoisier

An azeotropic mixture of two liquids boils at a lower temperature than either of them when lower temperature

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It is saturated

it shows positive deviation from Raoult's law

It shows negative deviation form Raoult's law

It is metastable

SO₂Makes ______ acid rains

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Carbonic acid

Sulfuric

Nitric acid

All of these

Identification of a substance, determination of its structure an quantitative analysis of its composition are the aspects covered by:

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Modern analytical physics.

Mechanical chemistry.

Biochemistry.

Modern analytical chemistry.

Which element among the following belongs to Group IV-A of the periodic table?

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Barium

Iodine

Lead

Oxygen

The coinage metals are

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Ni, Pd, Pt

Cu, Ag, Au

Zn, Al, Pb

Fe, Si, Sn

Which of the following is the use of electrolysis?

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Eletrorefining

Electroplating

Both A and B

None of the above

Peat before conversion to bituminous coal is converted to

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Lignite

Anthracite

Asphalt

None

The solution of which acid is used for seosoning of food ?

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Formic acid

Acetic acid

Benzoic acid

Butanoic acid

Which of these polymers is a synthetic polymer

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Animal fat

Starch

Cellulose

Polyester

Which element has 4 unpaired electrons in 3d-orbital

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Chromium - 24

Manganese - 25

Iron - 26

Cobalt - 27

The largest number of molecules are present in

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3.6 g of H₂O

4.8 g of C₂H₅OH

2.8 g of CO

5.4 g of N₂O₅

The vant Hoff factor (1) accounts for

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Degree of solubilisation of solute

The extent of dissolution of solute

The degree of decomposition of solution

Coal heated in the absence of air of about 500 - 1000°C is converted to

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Coke

Coal gas

Coal tar

All above

Formaline Contains ______% alcohol

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80

37

8

52

The ionic strength of a solution containing 0.1 mole/kg of KCl and 0.2 mole/kg of CuSO₄is

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0.3

0.6

0.9

0.2

Hydrocarbons are organic compounds which contain elements such as

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Hydrogen

Carbon

Hydrogen and carbon

Halogens

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1, 5-pentadiene

Penta-1, 4-diene

1, 1-pentadiene

1, 4-pentene

Aromatic aldehydes undergo disproportionation in presence of sodium or potassium hydroxide to give corresponding alcohol and acid. The reaction is known as

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Wurtz reaction

Cannizzaro reaction

Friedel Craft reaction

Claisen reaction

Etherification is catalyzed by

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Acids

Gases

Salts

None of the these

Which of these polymers is an addition polymer?

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Nylon-6,6

Polystrene

Terylene

Epoxy resin

When elements of group I react with the elements of group VIA theory form

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Ionic bond

Covalent bond

Polar bond

None

1, 3-Dibromopropane reacts with metallic zinc to form

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Propene

Propane

Cyclopropane

Hexane

Which of the following compounds on oxidation gives benzoic acid?

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Chlorophenol

Chlorotoluene

Chlorobenzene

Benzyl chloride

Alkyl halides in which a halogen atom is bonded to that carbon atom which directly bonded with one hydrogen atom is called

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Primary alkyl halides

Secondary alkyl halides

Tertiary alkyl halides

Quaternary alkyl halides

Which of the following is lighter

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Li

k

Na

Ca

Silver oxide battery has a voltage of

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2.0 V

1.5 V

2.5 V

1.0 V

The process of electrical coating of one metal on another to protect, decorate or to have greater resistance to corrosion is called

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Electroplating

Electrolysis

Conduction

Induction

Cell potential depends upon :

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Concentration of ions

Nature of electrolyte

Temperature

All of above

The percentage of carbon in different types of iron products is in the order of:

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Cast iron > wrought iron > steel

wrought iron > steel > cast rion

Cast iron > steel > wrought iron

Cast iron = steel > wrought iron

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