Question # 1

Which of the following is a molecular disease?

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Allergy

Cancer

German measles

Sickle cell anemia

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

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Mercury

Lead

Nitrogen oxide

Sulphur oxide

The halide which is not hydrolysed is

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SiCI₄

SiF₄

CCI₄

PbCI₄

Reaction of acids with alcohols is also known as

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Esterification

Saponification

Alkalization

None

Leblanc process is employed in the manufacture of

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Baking soda

Washing soda

Potash

Plaster of paris

By using the fluted filter paper rate of filtration is

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Increased

Decreased

Filtration is constant

Having no effect

The main structure features of proteins is

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An ester linkage

An ether linkage

The peptide linkage

All

Gooch crucible used to filter the solution of

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H₂SO₄

HCI

KMnO₄

Both B & C

Which of the following is not present in RNA?

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Uracil

Thymine

Ribose

Phosphate

Which of the following reagent cannot be used for preparing alkyl chloride from alcohol?

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HCI + anhyd. ZnCI₂

NaCI

PCI₅

SOCI₂

For preparing an alkane, a concentrated aqueous solution of sodium or potassium salt of saturated carboxylic acid is subjected to

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Hydrolysis

Oxidation

Hydrogenation

Electrolysus

Reaction of ethylamine with chloroform in alcoholic KOH produces

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CH₃OH

CH₃NC

C₂H₅NC

C₂H₅CN

Which of the following alcohols cannot be produced by treatment of aldehydes or ketones with NaBH₄or LiAIH₄?

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1-Propanol

2-Propanol

2-Methyl-2-propanol

Ethanol

The number of atoms contained in 11.2 L of SO₂at S.T.P are

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3/2 x 6.02 x 10²³

2 x 6.02 x 10²³

6.02 x 10²³

4 x 6.02 x 10²³

By using the fluted filter paper rate of filtration is

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Increased

Decreased

Filtration is constant

Having no effect

For preparing an alkane, a concentrated aqueous solution of sodium or potassium salt of saturated carboxylic acid is subjected to

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Hydrolysis

Oxidation

Hydrogenation

Electrolysis

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

Which of the following metal exhibits more than one oxidation?

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Na

Mg

Fe

Al

Which quantum number is sufficient to describe the electron is hydrogen

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ι

n

m

s

The acid used in lead storage cells is

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Phosphoric acid

Nitric acid

Sulphuric acid

Hydrochloric acid

The rotation of two carbon atoms joined by double bond would happened only if

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P_ibond is broken

Sigma bond is broken

Both bonds are broken

None of above

Inert pair effect plays an important role in case of

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F

Al

Si

Tl

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