Question # 1

Fe+2 is the co-factor for

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Chrome oxidase

Glucose-6-phosphatase

Carbonic anhydrase

Hydrolase

Low IE is a symbol of

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high electronegativity

small size

High electron affinity

Metallic character

The destiny of a gas is directly proportional to pressure, inversely proportional to temperature and directly proportional to:

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Viscosity

Molar mass

Momentum

All of above

The molecular mass of a polymer is obtained by multiplying mass of the monomer unit the degree of polymerization. The degree of polymerization of PVC is 1000. What is molecular mass

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65000

63000

62000

60000

If Cl2 is passed through hot NaOH. NaCIO3 is formed and the oxidation number of CI changes from

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-1 to 0

0 to +5

0 to-1

0 to +1

In which of the following techniques rate of reaction is directly related with number ofions

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Spectrometry

Dilatometric method

Conductometric method

Refractometric method

The main pollution leather tanneries in the waste water is due to the salt of:

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chromium

copper

calcium

lead

Which of the following is correct statement about cellulose

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It is sweet is taste

It contain 20% amylose

It is used in laundering

It containsβ1-4-linkage

Common names of carboxylic acids are given by then:

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Source

Person discovered

Place

Habit

The % age of nitrogen in ammonia is:

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80%

92%

90%

50%

Acetic acid reacts with thionyl chloride to form acetyl chloride, which species acts as nucleophile in the reaction

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SO3

SO2

Cl-

No nucleophile is formed

Thre rate of S_N2 reaction depends upon the

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Concentration of alkyl halides

Concentration of nucleophile

Concentration of alkyl halides and nucleophile

None of the above

The shape of the molecule SF₂Cl₂is

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Trigonal bipyradmidal

Cubic

Octahedral

Tetrahedral

The number of bonds in nitrogen molecule is

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Dilatometric method is used for rate determination when

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Reactions involving change of optical

Reactions involving change of optical activity

Reactions involving small volume change

None of above

A compound containing carboxyl group in them are called:

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Ketone

Ether

Carboxylic acids

Polycarboxylic acid

Which is not the affect of polluted air on environment

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Acid rain

Smog

Ozone

Global warming

1 erg of energy corresponds to

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6.02 x 10²³J/mol

6.02 x 10¹⁶J/mol

1 erg/mol

10^-7J/mol

The organic compounds containing Ph--OH group are called:

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Phenol

Aldehyde

Ketones

Carboxylic acids

Which of the following fluorides does not exists?

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NF₅

PF₅

AsF₅

SbF₅

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+712 KJ mol^-1

+492 KJ mol^-1

-932 KJ mol^-1

-960 KJ mol^-1

An electric current is passed through silver nitrate solution using silver electrodes.10.79 g of silver was found to be deposited on the cathode if the same amount of electricity is passed through copper sulphate solution using copper electrodes, the weight of copper deposited on the cathode is

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6.4 g

2.3 g

128.8 g

3.2 g

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