Question # 1

A bound formed between two amino acids is:

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Peptide linkage

Covalent bound

Hydrogen bound

Glycosidic linkage

Conversion of wood into coal is called.

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Carbonization

Destructive distillation

Fractional distillation

All

Which element do not causes toxicity in water?

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Lead

Arsenic

Sodium

Mercury

How many percentage blister copper is pure?

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95%

75%

98%

100%

Alkynes are also called.

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Olefine

Ethene

Paraffins

Acetylenes

Which hydrocarbon has no effect on an aqueous solution of bromine.

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CH₄

C₁₀H₂₀

C₂H₂

C₂H₄

Oxidation of alkenes forms:

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Glycol

Glyoxal

Formic acid

Oxalic acid

Dehydrohalogenation take place in the presence of.

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Aqueous NaOH

Alcoholic KOH

Aqueous KOH

Alcoholic NaOH

When a reaction ceases to proceed further , it is called.

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Chemical states

Static state

Physical state

Dynamic equilibrium state

According to Bronsted and Lowry concept a base is a substance that can accept.

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Proton

Electron pair

Neutron

Electron

What is the colour of hydrogen iodide in product?

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Purple

Yellow

Blue

Colorless

Acetic acid is used for:

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Elching designs

Clearing metals

Flavouring food

Making explosives

Which one contains triple covalent bond?

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Pentane

Ethylene

Acetylene

All

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