Question # 1

Which is not a steroid

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Cholesterol

Ergosterol

Phospholipids

None of these

The curve which is obtain from Boyle's law is called as

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Isochoric

Isotherm

Adiabatic

All of these

The non polar gases of low polarizability have a very:

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Low critical temperature

Stable critical temperature

High critical temperature

In cyclic structure of glucose when the position of atoms on Carbon 1 is altered one isomer changes to other. These isomers of glucose are called

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Annomers

Position isomers

Meta-mess

Cis-trans isomers

Which is trigonal cyrstal

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BaSO₄. 4H₂O

FeSO₄

NaNO₃

None

Amount of fresh water used by agriculture is

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2%

23%

69%

97%

consider the physical properties of the gases. Which of the following statements about particles of gases is incorrect? The particles are:

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causing pressure

having wide spaces

orderly arranged

randomly moving

Which alcohol is most reactive towards sodium metal?

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Ter Butyl alcohol

n-Propyl alcolol

Isopropyl alcohol

Have same reactivity

Storage form of iron

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Transferrin

Ferritin

Myosin

Actin

Natural fertilizers are materials derived form:

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plants

animals only

both plant and animals

none of all

CH3CH2CH2OH--------A---------B Here B is

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Propyne

Propanal

Propene

Propane

The avtive mass of 64 g of HI in a two litre flask would be

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2

1

5

0.25

Which of the following correctly describes the process occurring at the electrodes when molten NaCl is electrolyzed:

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No reaction at anode, reduction at cathode.

No reaction at cathode, oxidation at anode.

Oxidation at anodes, reduction at cathode.

Oxidation at cathode, reduction at anode.

Which of the following element is responsible for oxidation of water to O₂in biological process?

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Fe

Mn

Cu

Mo

Depletion of ozone layer is due to

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Oxides of nitrogen

Oxides of carbon

Oxides of sulphur

None of the above

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Excitantion of an electron from 2s to 2p-orbital

Transfer of three electrons from B to the other atoms

Excitation of two electrons form 2s orbital to 2p orbital

Formation of molecular ion

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Complete conversion of A to B has taken place

Conversion of A to B is only 50% complete

Only 10% conversion of A to B has taken place

The rate of transformation of A to B is just equal to rate of transformation of B to A in the system

If initial concentration of the reactants and half life period of the reaction is known, then we can determine

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Average rate of reaction

Order of reaction

Rate constant k

Instantaneous rate

Hemoglobin is 68000 times heavier than:

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Oxygen atom

Nitrogen atom

Carbon atom

Hydrogen atom

Molecules of High molecular weight usually greater than 10,000 are called:

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Macro molecules

Mega molecules

Poly molecules

Gega molecules

Maximum potential energy that an electron can have within the atom is:

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Equal to zero.

Less than zero.

Greater than zero.

Infinite

The three alternate single and double bonds in the benzene ring are called

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Conjugate bonds

Resonating bonds

Both A and B

None of above

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