Question # 1

A fat or oil is characterised for extent of unsaturation by one of the following number,which one

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rancidity number

acid number

iodine number

saponicfication number

The substitution of a'-H' by '-NO2' group in benzene is called

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Nitration

Sulphonation

Ammunolusis

Reduction of benzene

Structure of CrO4(-2) is'

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triclinic

cubic

octahedral

tetrahedral

Which of the following gives positive haloform test and positive Fehling solution

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Acetone

Echanol

Acetaldehyde

Formaldehyde

Which of the following transition metal forms colourless compounds in +4 oxidation state?

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Ti

Cr

Cu

Zn

A single chloride free radical of CFCs can destroy upto ozone molecules:

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10

100

1000

100000

Which liquid is more volatile?

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water

mercury

benzene

honey

The rate of E1 reaction depends upon

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The concentration of substrate

The concentration of substrate as well as nucleophile

The concentration Nucleophilic

Nature of Catalyst

Which of the following is not a correct postulate of the kinetic theory of gases

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the gas molecules are in random motion

the collision between the molecules are perfectly elastic

the average kinetic energies of different gases are equal at a particular temperature

the pressure exerted on the walls of the container is due to intermolecular forces

Contamination of water of tanning industries is due to:

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Cr(III)

Cr(VI)

Mn(III)

Mn(VII)

The respiration process taking place in animals depends on a difference in

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Partial pressure

Osomotic pressure

Vapour pressure

Atomospheric pressure

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2-chlorobutanal

alfa-chlorobutanal

2-chlorobutyraldehyde

alfa- chlorobutyraldehyde

Which of the following is the use of electrolysis?

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Eletrorefining

Electroplating

Both A and B

None of the above

Which reaction produces a free radical

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SN reaction

Homelytic fission reaction

Heterolytic fission reaction

Addition reaction

Benzene has a -------- structure

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Pentagonal

Hexagonal

Heptagonal

Tetragonal

Where energy is released during a reaction it is

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Exothermic reaction

Endothermic reaction

A free radical reaction

A bond breaking reaction

Identify the heterocyclic compound

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Toluene

Pyridine

Butanoic acid

Propenol

The common name of propanoic acid is

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Acetic acid

Formic acid

Propionic acid

Butyric acid

Glutamic acid, aspartic acid are ______ amino acid

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Acidic

Basic

Neutral

None of these

Any other aldehyde except formaldehyde on reaction with Grignard's will produce

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Secondary alcohol

Primary alcohol

Tertiary alcohol

Aromatic alcohol

The uncertainty principle was stated only

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De Brogilie

Heinsenberg

Einstein

Schrodinger

In the expression rate = K [A]^a[B]^bK is

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The order of reaction

The speed of reaction

The specific rate constant

The overall order of reaction

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