Question # 1

Maximum number of unpaired electrons is in

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O₂

O₂⁺

O₂^-

O₂^2-

Structure of carbonyl is

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Tetrahedral

Linear

Octahederal

Trigonal planar

Which of the following compounds will not give Iodoform test on treatment with I₂/ NaOH

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Acetaldehyde

Acetone

Butanone

3-Pentanone

Which halogen occurs naturally in a positive oxidation state

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Fluorine

Chlorine

Bromine

Iodine

What product are formed by the oxidative cleavage of 2-butene by alkaline KMnO4.

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Propionic acid and formic acid

Ethanoic acid only

Ethanal only

Water and ethanol

The most reactive Alkyl halide is

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Alkyl Iodide

Alkyl Bromide

Alkyl fluoride

Alkyl Chloride

Which one of the following comp9ounds on hydrolysis will not produce a carboxylic acid.

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Alkyl halide

Alkyl Nitrite

Addition product of Grignard reagent and CO2

Ester boiled with sodium hydroxide

Phosphorus helps in the growth of

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Root

Leave

Stem

Seed

Reverse of esterification is known as

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Trans esterification

Saponification

Hydrolysis

Neutralization

Which element reacts with carbon to form metal carbide.

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Li

Na

K

All of these

Which one of the following reactants will be required to form ethyl alcohol form ethyl bromide.

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Alcoholic KOH

Aqueous KOH

Alkaline KMnO4

Sodium metal in ether

Which one of the followings is not ore of aluminium

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Coruridum

Bauxite

Colemanite

Kaolin

Aluminum oxide is

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acidic oxide

basic oxide

amphoteric oxide

none of these

When CO2 is made to react with ethyl magnesium iodide, followed by acid hydrolysis, the product formed is.

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Propane

Propanoic acid

Propanal

Propanol

Which property of hydrogen not resemble to alkali metals.

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Electronic configuration

Oxidation state

Reaction with halogen

Metallic nature

Lead monoxide is

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Amphoteric

Neutral

Acidid

Basic

The crystals of caustic soda, NaOH, are hygroscopic when these crystals are exposed to air.

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Gain water and remains solid

Gain water and becomes liquid

Lose mass and remain solid

Remain unchanged on heating.

A gas decolorizes alkaline KMnO4 but has no action with ammoniacal AgNO3, this gas may be

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C2H2

C2H4

C2H6

CH4

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