Question # 1

The average kinetic energy of an ideal gas per molecule is SI units at 25°C will be

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6.17 x 10^-21 KJ

6.17 x 10^-21 J

6.17 x 10^-20 J

7.16 x 10^-20 J

Which of the following is not a charbohydrate

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Nuclic acid

Starch

Glycoyen

Cellulose

Which of the following gases have maximum root mean square velocity at 25°C:

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SO₂

NH₃

CO₂

H₂S

The specie that develops strongest hydrogen bonding with water

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НСООН

B.CH3CH2СООН

CH3СООН

CICH2COOH

Cholesterol is an important precursor in the biosynthesis of

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Adrenal hormones

Sex hormones

Vitamin-D

All of these

Strong dipole-dipole forces among the liquid molecules are responsible for

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very high heat of vaporization

very low heat of vaporization

cannot be predicted

negligible forces are these

Which is the polymer that has amide linkage in its structure

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PVC

Poly ethene

Polyester

Nylon

The word paper is derived from the name of which reedy plant

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rose

sun flower

papyrus

water hyacinth

Which of the following alpha-Amino acids has basic R-group

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Proline

Glutamic acid

Histidine

Valine

Dipole-dipole forces and London forces are collectively called

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hydrogen bonding

Vander Waals forces

Covalent bonding

Ionic bonding

Stronger the intermolecular forces

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Lower the Vapour pressure

Greater the Vapour pressure

May be smaller or greater

None

The process in which the solvent molecules are surrounded and interact with solute ions or molecules is called

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Solvation

Hydration

Hydrogenation

None

The number of moles of solute in 1000g (1 Kg) of the solvent is called :

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Molarity

Normality

Mole fraction

Which one of the following in mainly responsible for depletion of ozone layer?

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Methane

Carbon dioxide

Water

chloroflurocarbons

The number of amino acids found in proteins that a human body can synthesize is

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20

10

5

14

Chromium (VI) is highly toxic and can cause

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Blindness

Cancer

Liver problems

Blood problems

Strong reducing agents gave

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Greater positive value of standard reduction potential

Greater negative value of standard reduction potential

Lesser positive value of standard reaction potential

None of these

Across the lanthanide series, the basicity of the lanthanide hydroxides

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Increases

Decreases

First increases and then decreases

First decreases and then increases

Which of the following compounds on boiling with KMnO₄(alk) and subsequent acidification will not give benzoic acid?

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Benzyl alcohol

Acetophenone

Anisole

Toluene

The test used for the detection of ethanol in the mouth of a drunk driver is that the drunk driver is asked to blow air from mouth into a solution of K₂Cr₂O₇and H₂SO₄. The colour changes, if the driver is drunk

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From orange to green

From pink to green

From orange to colorless

From pink to colorless

Neutrons was discovered by

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Mosely

Milliken

Chadwick

Ruherford

The factor which effect the rate of reaction

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Nature of reactants

Surface area

Light

All of the above

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