Question # 1

Which hydride is intermediate in nature.

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NaH

BeH2

NH3

HCl

Which one of the following can best be used to distinguish between samples of ethane and ethene

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Aqueous BaCl2

Aqueous bromine

Lime water

Litmus solution

The reaction between concentrated H2SO4 and glucose give carbon and water. In this reaction H2SO4 acts as.

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An acid

An oxidising agent

Dehydrating agent

A reducing agent

Which one is metaphosphoric acid

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HPO3

H3PO3

H3PO4

H4P2O7

Aluminium is used for making petrol and milk storage tanks because it is

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Conductor

Non magnetic

Excellent reflected

Corrosion resistant

Which one is alcohol in the following

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CH₃.CH₂.OH

CH₃.O.CH₃

CH₃COOH

CH₃.CH₂.Br

Keeping in view size of atoms ,which order is the correct one.

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Mg > Sr

Ba > Mg

Lu > Ce

Cl > I

The main pollutant of leather tanneries in the waste water is due the salt of.

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Lead

Chromium (VI)

Copper

Chromium (III)

Which is the longest periodic table

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4

5

6

7

The composition mixture of clay and lime stone in the raw material.

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75% lime stone and 25% clay

25% lime stone and 75% clay

15% lime stone and 55% clay

55% lime stone and 15% clay

Which one of the following enzyme is used for the treatment of blood cancer in children.

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Thrombin

Asparaginase

Glucokinase

Fumarase

Elements of Groups IIA are called

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Alkali metals

Alkaline earth metals

Coinage metals

Halogens

The chemist who synthesized urea from ammonium cyanate was

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Berzelius

Kolbe

Wholer

Lavoisier

Which of the following is an addition polymer

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Polyester

Polystyrene

Nylon 6,6

Terylene

Which acid is used in the manufacture of synthetic fiber

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Formic acid

Oxalic acid

Carbonic acid

Acetic acid

-SH Functional group is called

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Cyano

Mercapto

Nitro

Carboxyl

The number of acidic hydrogen present in 1- Propyne is

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1

2

3

4

Hydrolysis of benzene sulphonic acid with superheated steam or by boiling with dil HCl gives.

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Toluene

Benzene

Xylene

Chlorobenzene

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