Question # 1

Which of the following enzymes brings about the hydrolysis of fats

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Urease

Maltase

Zymase

Lipase

Which one of the following does not belong to alkaline earth metals.

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Be

Ra

Ba

Rn

The mean residence time of methane in atmosphere in

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1-2 years

3-4 years

3-5 years

3-7 years

Which one of the following alcohols will be formed when ethyl magnesium bromide reacts with acetone.

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Primary alcohol

Secondary alcohol

Tertiary alcohol

Dehydrin alcohol

Ethanol reacts with Na metal to form sodium ethoxide. What product will be formed when C2H5ONa reacts with methyl bromide.

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C2H5OC2H5

C2H5OCH3

CH3COC2H5

C2H5Br and NaBr

Which reaction is disproportionate reaction

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Aldol Condensation

Cannizzaros's reaction

Haloform reactions

Acid Catalyzed reactions

Which one of the following is not amino acid.

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Alanine

Glycine

Aspartic acid

Aniline

Fluorine is in group VII A of periodic table. Its chemistry will most closely resembles that of.

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Argon

Boron

Iodine

Sulphur

Litharge is chemically

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PbO

PbO2

Pb3O4

Pb(CH3COO)2

The nature of lysine amino acid is

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Acidic

Basic

Amphoteric

Natural

The concept of atomic number was introduced by

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Alrazi

Mendeleeve

Moseley

Dobereiner

Which enzyme is not involved in fermentation of starch.

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Diastase

Zymase

Urease

Invertase

The solution of which acid is used for seasoning of food.

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Formic acid

Acetic acid

Benzoic acid

Butanoic acid

Which of the following is not directly prepared from CH₃COOH

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Ethyl acetate

Acetyl chloride

Acetic anhydride

Acetamide

A single chloride free radical can destroy how many ozone molecules

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100

100,000

100,00

unlimited

The percentage of carbon is different types of iron products is in the order of.

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Cast iron > wrought iron > Steel

Wrought iron >Steel >Cast iron

Cast iron > Steel > Wrought iron

The fiber in which monomer isCH2=CH-Cl is known as

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Saran fiber

PVC

Rayon fiber

Arcylic fiber

Formula of chloroform is

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CH₃Cl

CCl₄

CH₂Cl₂

CHCl₃

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