Question # 1

Detergents are:

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synthetic products

natural product

both a and b

none of the above

Which one of the following organic acids is made fork methanol?

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propanoic acid

butanoic acid

formic acid

acetic acid

Which pair of the gases doesn't obey Dalton's Law of partial pressures

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H₂and O₂

N₂and O₂

H₂S and H₂

NH₃and HCl

If the volume term is present in denominator of Kc expression, then which one is correct

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Increase in pressure will shift the reaction backward

Increase in pressure will shift the reaction forward direction

Decrease in volume will shift the reaction forward direction

Reaction will not effected

Forms of waste products:

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Heat

Smoke

Solid

All of these

Aldehydes are easily oxidized to corresponding carboxylic acids in the presence of:

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Strong oxidizing agents

Highly strong oxidizing agents

Tollen's reagent

Tollen's reagent and Fehling solution

A molecule of polysaccharide on hydrolysis produces _________ molecules of monosacharides:

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many

Few

2-10

100

Which of the following govern the diffusion of gases

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Dalton's law

Avogadro's law

Graham's law

Newton's law

C₆H₁₂O₆is molecular formula of:

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Glucose

Dextrose

Fructose

All of these

The basic difference between synthetic and natural fertilizer is in their

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raw material

crop application

usage

shapes

An example of ion-dipole force is the solution of:

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bromine inbenzene

ethanol is water

NaCl in water

glucose in water

A solution containing maximum amount of solute dissolved at a given temperature is called

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Saturated solution

Unsaturated solution

Supersaturated solution

Impure solution

Smallest charge of electricity that has been measured so far is

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Charge on a-rays

Charge on electron (1.602 x 10^-19C)

Charge on x-rays

Charge on gamma rays

Which is litharge or massicot?

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PbO

Pb₂O

Pb₃O₄

PbO₂

The tip of the funnel should touch the side of the beaker in order to avoid :

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Splashing.

Leakage.

Mixing.

Contamination.

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Cu

H

N

O

The effective activity of a metal catalyst is increased if it is in

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Solid form

Liquid state

Gaseous state

Finely divided form

What is not a common use of methane

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As a fuel

For the preparation of haloaklanes

For the preparation of methyl alcohol

For the preparation of sulphuric acid

In the chemical combination of hydrogen and fluorine to form HF:

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Sodium atom donates major share of its electrons.

Hydrogen atom donates the major share of its electrons.

Both the atoms share the electrons equally.

None of above.

Which alcohol gives only one oxidation product when wormed with dil acidified K₂Cr₂O₇

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Butan-1-ol

Butan-2-ol

2-methyl propan-1-ol

2-methyl propan-2-ol

The fractions obtained from fractional distillation of petroleum are placed in increasing order of their boiling points. Which order is correct

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Natural gas, petroleum ether, gasoline kerosene

Petroleum ether, kerosene, natural gas, petroleum ether

Gasoline, kerosene, natural gas, petroleum ether

Kerosene, gasoline, petroleum ether, natural gas

3 moles of ethanol react with one mole of phosphorus tribromide to from 3 moles of bromoethane and on mole of X. Which of the following is X?

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H₃PO₄

H₃PO₂

HPO₃

H₃PO₃

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