Question # 1

An ideal gas obeying kinetic gas equation can be liquefied if

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Its temperature is more than critical temperature

Its pressure is more than critical pressure

Its pressure is more than critical pressure but temperature is less than critical temperature

It cannot be liquefied at any value of P and T

Amides are

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Strongly basic

Weakly basic

Acidic

Strongly

A graph between P and PV constant temperature and number of moles is parallel to:

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Y-axis

X-axis

Z-axis

Pressure axis

Surface and ground water sources are contaminated by various human activities. Which of the following is not a human activity that causes contamination in fresh water

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Rain

Live stock waste

Oil leaks and spills

Disposal of industrial effluents

Which one of the following is NOT a nucleophile

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NH2+

BF3

H2O

CH3-

The words smog is a combination of smoke and:

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fog

foke

fork

fizzy

The Complete oxidation of ethanol produces first Ethanal than

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Ethanal

Propanone

Ethanoic acid

Benzoic acid

Dalton's law finds its application during the process of:

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Digestion

Respiration

Reproduction

All of above

Oils and fats belong to the class of

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Alcohols

Hydrocarbons

Acids

Esters

The peptide bond is

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Glycine

Non-covalent bond

Weak bond

Responsible for secondary structure of protein

Mass spectrometry is used to determine the

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Number of isotopes of an element

Relative abundance of isotopes

Relative isotopic masses

All of these

Spontaneous reaction is such in which the system decreases its ______

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Energy

Free energy

Entropy

All

The higher molecular weight materials which yield on hydrolysis the amino acids is called:

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Carbohydrates

Lipids

Fatty acids

Proteins

Acetylene is used in the manufacture of

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Rubber

Plastic

Ethyle alcohol

All of these

HNO₂acts as an/a

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Acid

Oxidizing agent

Reducing agent

All the three

Which of the following is an aromatic compound

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Propanol

Cyclohexane

Acetone

Benezene

Urea has concentration when prepared before prlilling:

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46%

82%

99.7%

100%

The nitration of benzene takes place when it is heated with a mixture of conc.HNO₃and conc. H₂SO₄at 50°C in ratio of

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1 : 2

1 : 1

1 : 3

2 : 1

The charge over mass ratio of electron is:

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1.6 x 10^-1 C Kg^-1

9.1 x 10^-31 C Kg^-1

1.7588 x 10¹¹ C Kg^-1

6.62 x 10^-34 C Kg^-1

The value of K_pis greater than K_cfor a gaseous reaction when

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Number of molecules of products is greater than the reactants

Number of molecules of reactants is greater than those of products

Number of molecules of reactants and products equal

Catalyst is added

The relative lowering of vapour pressure is equal to the mole fraction of the solute is statement of

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Rault law

Henry law

Dalton law

Grahms law

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2, 3-dimethylbutane

2, 3-methylbutane

2-dimethylbutane

Dimethylbutane

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