Question # 1

A line parallel to x-axis is obtained when graph is drawn between

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Volume on abscissa & pressure on ordinate

Volume on abscissa & PV on ordinate at all conditions

Pressure on abscissa & PV on ordinate at constant temperature

None of these

The solubility of A2B3 is X mole dm-3. Its Ksp is?

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6X(5)

36X(5)

64X(5)

108X(5)

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

The optimum PH value fro the enzyme pepsin is:

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10

1.4

2

8

Amino acids are building material of:

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lipids

protein

carbohydrates

fats

Polumerization process was classified by

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W.H. Garold

William Hackel

W.H. Carothers

H. Carothers

In a saturated solution of AgCl, the molar concentration of Ag+ and Cl- is 1.0x10(-5)M each. What is the value of Ksp

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1.0x10(-5)

1.0x10(-15)

0.1x10(-5)

1.0x10(-10)

Essential alpha-amino acids are those which are necessary in the diet.

Which one is an essential alpha-amino acids

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Alanine

Aspartic acid

Glycine

Tryptophan

Acetic acid is also named:

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Methanoic acid

Ethanoic acid

Propanoic acid

Butanoic acid

Fresh water of total earth water is:

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1%

2%

3%

4%

Which ion has maximum number of unpaired electrons in 3d subshell and shows maximum paramagnetic behavior?

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Cr+3

Ni+2

Co+2

Fe+3

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High temperature and low pressure

Low temperature and low pressure

Low temperature and high pressure

High temperature and high pressure

Which of the following is an ortho-para directing group

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In purification of potable water the coagulant used is:

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Nickel Sulphate

Copper Sulphate

Barium Sulphate

Aluminium Sulphate

The number of electron pairs shared in carbon tetrachloride molecule is

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2

3

4

1

The presence of a double bond in a compound is the sign of

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Saturation

Unsaturation

Substitution

None of above

The chemical reactivity of glass is reduced by the use of

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Fluxes

Formers

Stabilizers

None of these

Alkanes normally have ______ hybridization

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Sp

Sp²

Sp³

d sp³

Those compound which have any atom other than C as member of rings are called as

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Monocyclic

Hetrocyclic

Aliphatic

Both a and b

Rutherford's experiment led to the discovery of

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Nucleus

Electron

Proton

alpha particle

If a salt bridge is removed between the two half cells, the voltage

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Drops to zero

Does not change

Increases gradually

Increases rapidly

Ground and surface waters are contaminated and become polluted due to the human activity. Which human activity will bot cause water pollution

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Live stock waste

Agricultural pesticides

Oil breaks and spills

All of the above

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