Question # 1

Acidic hydrolysis of acetamide gives

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Acetaldehyde

Acetic acid

Methyl amine

Formic acid

Peat before conversion to bituminous coal is converted to

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Lignite

Anthracite

Asphalt

None

Metal tend to lose electrons, becoming:

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Metals

Positively charged

Negatively charged

(a)And (c)

Which compound has the maximum repulsion with water?

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C₆H₆

C₂H₅OH

CH₃CH₂CH₂OH

CH₃----O---CH₃

The number of electrons in the M shell of the element with atomic number 24 is

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24

12

13

8

Corrosion of iron can be prevented by coating the surface with

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Zn

Sn

Ni

Any of the above

Which represents nucleophilic aromatic substitution reaction?

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Reaction of benzene with Cl₂in sunlight

Benzyl bromide hydrolysis with water

Reaction of NaOH with dintrofluoro benzene

Sulphonation of benzene

Electron affinity of sulphur is

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More than O and Se

More than O but less than Se

Less than O but more than Se

Equal to O and Se

Isotopes differ in

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properties which depend upon mass

arrangement of electrons in orbitals

chemical properties

the extent to which they may be affected in electric fields

The radius of second Bohr's orbit is

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0.053 nm

0.053/4 nm

0.053 x 4 nm

0.053 x 20 nm

Which reagent could be used to distinguish between CH₃CH(OH)CH₂CHO and CH₃COCH₂CH₂OH

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Acidified potassium dichromate

Dilute sulphuric acid

2,4-dinitrophenylydrazine

Fehling's reagent

Who rejected the vital force theory

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Wholer

Fisher

Newton

Lewis

When 6d orbital is complete, the entering electron goes into:

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7f.

7s.

7p.

7d.

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Le-chatlier's principle

Only adding catalyst

Decreasing pressure

Decreasing temperature

Which of the following substances is used as an antiknock compound?

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Tetraethyl lead

Lead tetrachloride

Lead acetate

Ethyle acetate

Angle 120° is observed in molecules :

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CH₄

CH_3-CH₃

CH -CH

CH_{2 =}CH₂

Estimation of Na in sea water is an example of

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Numerical analysis

Qualitative analysis

Quantitative analysis

None of above

Vinyl acetylene combines with HCI to form

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Poly acetylene

Benzene

Chloroprene

Divinylacetylene

Which one of the following substance is use as decolonizing agent

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Asbestos

Animal charcoal

conc, H₂SO₄

Silica gel

[Ti(H₂O)₆]⁺³ion absorbs colour:

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Blue

Yellow

Green

Red

Indicate the correct statement

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All lanthanidees are present in the same group

All halogens are present in the same period

All the alkali metals are present in the same group

All the noble gases are present int he same period

Where lime is not used

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In refining or metals

In paper industry

In glass industry

In the preparation of NaOH

Common names of aldehydes are given by corresponding:

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Ketone

Alcohol

Carboxylic acid

ester

The OH group present in acids may be replaced by CI atom on treatment with

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PCI₅

SOCI₂

Both of them

None of the above

Which polymerization is free radical machanism based

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Addition

Condensation

Both a and b

None

Amino acids are buildng blocks of:

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protein

Carbohydrates

Lipids

fats

The bond angles in methane CH₄are equal to

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109.5°

107.5°

104.5°

120°

Which of the following has highest oxidation potential

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Be

Li

Na

Ca

Which is an essential constituent of chlorophyll

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Be

Fe

Mg

Ca

When propanamide reacts with Br₂and NaOH then which of the following compounds is formed?

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Ethyl alcohol

Propyl alcohol

Propyl amine

Ethylamine

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

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Se³⁺

Ti³⁺

Cu⁺

Zn²⁺

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