Question # 1

Benzene + Ozone → Y. in this sequence Y is

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Benzene monoozonide

Benzene diozonide

Benzene triozonide

Succinic acid

Bell metal is an alloy of

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Cu,Zn,and Sn

Cu,Zn and Ni

Cu and Zn

Cu and Sn

The spectrum of helium is expected to be similar to that of

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H

Li⁺

Na

He⁺

The last orbit of argon would have electrons

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8

18

2

6

Evaporation of water is

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An exothermic change

An endothermic change

A process where no heat changes occur

A process accompanied by chemical

Which of the following has linear shape?

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SP

SP²

SP³

None of the above

For the carbylamine reaction we need hot alc.KOH and

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Any amin and chloroform

Chloroform and Ag powder

A primary amine and chloroform

A mono alkyl amine and trichlorom-ethane

Which of the following alcohols cannot be produced by treatment of aldehydes or ketones with NaBH₄ or LiAIH₄?

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1-Propanol

2-Propanol

2-Methyl-2-propanol

Ethanol

The vapour density of a gas is 11.2 The volume occupied by 11.2 g of this gas at N.T.P is

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22.4 liters

11.2 liters

1 liter

2.24 liters

The alkali metal which is liquid at 15°C is

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K

Cs

Na

None

1 mole of CH₄ contains

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6.02 x 10²³ atoms of H

4 g-atom of hydrogen

1.81 x 1023 molecules of CH₄

3.0 g of carbon

What happens when CCl₄is treated with AgNO₃solution?

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NO₂will be evolved

A white ppt. of AgCl will form

CCl₄will dissolve in AgNO₃solution

Nothing will happen

Which of the following imparts violet colouration to non-luiminous flame of Bunsen burner?

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NaCl₂

BaCl₂

CaCl₂

KCl

Hypo is used to photography for

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Developing picture

Picture printed

The colour of picture

The fixation of picture

Reaction of acids with alcohols is also known as

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Esterification

Saponification

Alkalization

None

The kinetic theory of gases predicts that total kinetic energy of a gaseous assemble depends on

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Pressure of the gas

Temperature of the gas

Volume of the gas

Pressure, temperature, and volume of the gas.

Atmosphere of big/metropolitan cities is polluted most by

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Automobile exhausts

Pesticide residue

Household waste

Radio-active fall out

White P when boiled with strong solution of caustic soda produces

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Phosphine

Posh acid

Phosphorous acid

None

Which of the following statements is most appropriate about effective nuclear charge? It depends upon

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The shielding constant

The atomic number

The charge on the nucleus

Both the nuclear charge and the shielding

Acetylene gives

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White ppt. with ammonical AgNO₃and red ppt. with ammonical Cu(NO₃)₂

White ppt. with ammonical AgNo_{3 and red ppt. with ammonical}Cu₂Cl₂

White ppt. with both

Red ppt. with both

Which of the following is an example of body centred cube?

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Magnesium

Zinc

Copper

Sodium

Bleaching action of bleaching powder is due to the liberation of

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O₂

OCl^-

Cl₂

Cl^-

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