Question # 1

Carbon and Hydrogen are estimated by

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Liebig's method

Kjeldhal's method

Carries method

None of the above

In order to give strength and elasticity natural rubber is heated with.

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Sulphur

Oxygen

Nitrogen

Chlorine

Which of the following is not an androgen i.e. male sex hormones.

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Androsterone

Testosterone

Oestrone

All of these are make hormone

Oil of turpentine contains

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a-pinene

b- pinene

Both A and B

Name of these

Biogical role of nucleic acid doe snot include

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Genetic continuity

Protein syathesis

Hybridization

Mutation

Which of the following statement is not correct n respect of Arrhenius concept.

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The concept is applicable only for aqueous systems.

Neutralization takes place in aqueous mediam only

TH+ ion cannot remain as such in water

This concept is applicable for non aqueous system only.

Complete hydrolysis of nucleotide result in the formation of.

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Heterocyclic bases

A pentose

A phosphate ion

All of these

Glucose and fructose react with which of the following reagent to give same product.

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Tollen's reagent

Phenyl hydrazine

Hydroxyl amine

All of these

Which of the following statement is not correct with respect to limitations of Hammett equation.

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It is only applicable to aromatic systems

Only applicable to aliphatic systems

It is not valid for m-substituent

In the reaction RCO2Na + Na OH (CaO) ______ RH, we eliminate carboxylate group as.

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CO2

Na2CO3

-CO

CaCO3

The reagent which can be used to distinguish acetophenone from benzophenone is.

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2,4 -dinito phenyl hydrazine

Li AIH4

Benedict reagetn

I2 and Na2CO3

Which of the following dyes belongs to the group of acridine dyes.

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Acriflavin

Alizarin

Indigotin

Cyanine

Gutta percha is

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Cis poly imprene

Trans -polyisoprene

Polyethylene

Polyisobutylene

Which of the following class of compounds follow the criteria of aromatically.

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The compounds must have high degree of unsaturation

they must have the property to undergo addition reactions

They must have the property to undergo substitution reactions

They must have the ability to sustain an induced current in NMR

Albumin is classified as

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Simple protein

Conjugated protein

Lipoprotein

Derived protein

Indigotin is a dye obtained from indigo plant which belongs to the group of.

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Substantive dyes

Mordant dyes

Vat dyes

Disperse dyes

SAN is a polymer of

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Styrene

Acrylonitrile

Both A and B

Vinyl chloride

Which of the following compound will be optically active.

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Suceinic acid

Meso tartaric acid

Acetic acid

Lactic acid

Which of the following pairs does not represent Lowery acid base pair.

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H2O+NH3

H2O +H2O

HCL + H2O

CH3NH2 + BF3

The stationary and mobile phases in paper chromatography are.

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^{Liquid/Liquid}

Solid /Liquid

Liquid/Solid

Gas/solid

Vitamin D1 is chemically known as

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Ergocalciferol

Tocopherol

Aserphthol

Phylloquinone

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