Question # 1

Which of the follow8ing is not a fatty acid.

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Propanoic acid

Acetic acid

Phthalic acid

Butanoci acid

Which ion will have the maximum value of heat of hydration.

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Na+

Ca+

Ba+2

Mg+2

The avoid the formation of toxic compounds with chlorine which substance is used for disinfecting water

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KMnO₄

O₃

Alums

Chloramines

Tincal is a mineral of.

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Al

B

Si

C

Which one of the following substance does not react with Na.

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CH3COOH

CH3OCH3

CH3OH

C2H5OH

The total number of translation elements is

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10

14

40

65

Basicity of ortho phosphoric acid is.

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1

2

3

4

When concentrated H2SO4 and solid sodium chloride react together at room temperature the product are.

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Two salts only

A salt and a base

A salt and an acid

A salt and water

Which of the following reagents will reacts with both aldehydes and ketones.

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Grignard reagent

Tollens's reagent

Fehling's reagent

Benedict 's reagent

Which is the least reactive of all the alkali metals

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Li

Na

K

Cs

Which one of the following oxides is amphoteric in nature.

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MgO

Na2O

SO2

ZnO

Which hydroxide decomposes on heating.

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LiOH

NaOH

KOH

CaOH

Systematic name of phthalic acid is

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Benzenedicarboxylic acid

Benzene doioc acid

1,2 benzenedicarboxylic acid

o, carboxylic benzoic acid

In primary alkyl halides, the halogen atom is attached to a carbon which is further attached to how many carbon atoms

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Two

Three

One

Four

Acetone reacts with HCN to form cyanohydrin it is an example of

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Electrophilic addition

Electrophilic substitution

Nucleophilic addition

Nucleophilic subtitution

Which gas is cause of Asthma

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O₃

O₂

SO₂

CO₂

Which one of the following elements has no variable valency.

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Zinc

Iron

cobalt

Manganese

Each of the following is true for white and red phosphorus except one.

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Both are soluble in CCl4

Both can be oxidized by heating in air

Both consists of same kind of atoms

Both can be converted into each other

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