Question # 1

The word alkali is derived from which language

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Arabic

Greek

French

German

Which element form an ion with charge +3

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Beryllium

Aluminum

Carbon

Sillicon

Which one of the following acids acts as oxidizing agent but never a reducing agent.

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HCIO

HCIO2

HCIO3

HCIO4

Which one of the following is not a heterocyclic compound.

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Furan

Thiophene

Pyridine

Aniline

Which woody raw material is used for the manufacture of paper pulp.

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Cotton

Bagasse

Poplar

Rice straw

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

Transition elements are those

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Which becomes before uranium

Which becomes after uranium

Which are prepared artificially

Which are in between s-block and p - block elements

Boric acid cannot be used

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As antiseptic in medicine

For washing eyes

In soda bottles

For Enamals and Glazes

Water is disinfected by a substance to avoid toxification

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KMnO₄

Alums

O₃

Cl₂

The composition of oleum is.

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H2SO4

H2S2O3

H2S2O7

H2S3O7

The anhydride of HCIO4 is

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CIO3

CIO2

Cl2O5

Cl2O7

Which one is a disaccharide

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Glucose

Sucrose

Fructose

Cellulose

Acetaldehyde reacts usually with

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Electrophiles only

Nucleophiles only

Electrophiles and nucleophiles

Free radicals only

Which of the follow8ing is not a fatty acid.

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Propanoic acid

Acetic acid

Phthalic acid

Butanoci acid

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 of the following substance does not react with Na.

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CH3COOH

CH3OCH3

CH3OH

C2H5OH

Which is not polymer

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Diamond

Starch

Sand

Nucleotide

What are the number of the electrons in valence shell of P in PCl3

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4

6

8

10

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