Question # 1

Detergents are

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Synthetic products

Natural products

Both A and B

None of the above

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

Calcium acetate when dry distilled gives

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Formaldehyde

Acetaldehyde

Acetone

Acetic anhydride

The osmotic pressure of solution increases if

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Temperature is decreased

Solution constant is increased

Number of solute molecules are increased

Volume is increased

Minamata disease is due to pollution of

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Organic waste

Oil spill in water

Industrial waste containing mercury into fishing water

Arsenic into the atmosphere

Magnesium keeps on burning in

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N₂

CO₂

N₂O

N₂as well as CO₂

The essential component of organic compound is

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O

C

P

N

The rate of a reaction that does not involves gases, does not depend upon

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Pressure

Temperature

Concentration

Catalyst

Galena is an ore of

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Gallium

Lead

Tin

Germanium

Which of the following nitrogen fertilizer contain more nitrogen

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NaNO₃

KNO₃

NH₄NO₃

Urea

The rate at which a substance reacts depends on its

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Atomic weight

Equivalent weight

Molecular weight

Active mass

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

Red P can be obtained from white P by

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Heating it with a catalyst in an inert atmosphere

Distilling it in an inert atmosphere

Dissolving it in CS₂and crystallzing

Melting it and pouring the liquid into water

Gooch Crucible used to filter the solution of

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H₂SO₄

HCI

KMnO₄

Both B & C

Ascorbic acid is chemical name of

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Vitamin D

Vitamin A

Vitamin C

Vitamin B6

Which of the following alkali metal hydroxides is the strongest base?

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LiOH

NaOH

KOH

CsOH

Wt. of 112 ml of oxygen at NTP on liquification would be

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0.32 g

0.64 g

0.16 g

0.96 g

Which of the following method is most appropriate for the manufacture of methane?

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By reduction of CH2SL2

Wurtz reaction

Liquification of natural gas

None of these

Which of the following with aqueous KOH will give acetaldehyde?

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1, 2-Dichloroethane

1, 1-Dichloroethane

Chloroacetic acid

Ethyl chloride

Which one of the following compounds does not exist?

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NCl₅

AsF₅

SbCl₅

PF₅

Which of the following reaction is used for detecting presence of carbonyl group?

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Reaction with hydroxylamine

Reaction with hydrazine

Reaction with phenyl hydrazine

All

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