Question # 1

Sulphonation of benzoic acid produces mainly

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o-Sulphobenzoic acid

m-Sulphobenzoic acid

p-Sulphobenzoic acid

o- and p-Sulphobenzoic acid

Which of the following is not present in RNA?

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Uracil

Thymine

Ribose

Phosphate

Which of the following geometry is associated with the compound in which the central atom assumes sp³d hybridization?

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Planar

Pyramidal

Angular

Trigonal bipyramidal

Cannizzaro reaction is not given by

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Trimethyl acetaldehyde

Acetaldehyde

Benzaldehyde

Formaldehyde.

Octane number is zero for

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n-Heptane

Isooctane

n-Hexane

Isoheptane

Which of the following transition metal ions will have definite value of magnetic moment?

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Sc³⁺

Ti³⁺

Cu⁺

Zn²⁺

Bromine is obtained on a commercial scale from

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Caliche

Carnallite

Common satl

Cryolite

The dimension of rate constant of second order reaction involves

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Neither time nor concentration

Only time

Time and concentration

Time and square of concentration

Which of the following oxides is peroxide?

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Na₂O₂

MnO₂

BaO

SO₂

In which of the following elements +1 oxidation state is more stable than +3

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B

Al

ga

Ti

Pollutant of automobile exhausts that affects nervous system/produces mental diseases is

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Mercury

Lead

Nitrogen oxide

Sulphur oxide

Potassium is kept in

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Water

Ammonia

Alcohol

Kerosene.

Which of the following belongs to the halogen family?

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Francium

Polonium

Radium

Astatine

If one litre of air is passed repeatedly over heated copper and magnesium till no further reduction in volume takes place, the volume finally obtained would be approximately

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800mL

200mL

10mL

Zero

Maximum number of active hydrogens

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Acetic acid

Glycerol

Methane

Methanol

Sodium thisoulphate is used in photography because of its

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Oxidizing behaviour

Reducing behaviour

Complexing behaviour

Photochemical behavior

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