Question # 1

The pressure exerted by gas molecules is due to their

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collisions

densities

masses

kinetic energy

The reaction takes place among the molecules when they have:

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Activation energy

Properly oriented

Concentrated

Activation energy and proper orientation

The normal amount of overhead ozone is

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350 DU

450 DU

400 DU

300 DU

Zwitter ion are

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Basic

Acidic

Neutral

Carry both -ve and +ve charges

Addition of washing soda removes

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Softness of water

Temporary hardness of water

Permanent hardness of water

Hydrogen from water

Agriculture consumes part of fresh water:

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1%

2%

69%

23%

Alcohol is less acidie than phenol due to

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higher ka value

Instability of alkoxide ion

stability of carbocation

Stability of phenol

The relationship between volume of a given amount of gas and prevailing conditions of temperature and pressure are:

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Charle's law

Graham's law

Boyle's law

Gas laws

At ordinary temperature, the most nearly ideal gases are

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N₂

He

H₂

all these

Which of the following is primary alkyl halide

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IsopropyI halide

Sec-butyl halide

Tert-buryi halide

Neo-pentyl halide

CH₃CH₂COOH is also named as:

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Propionic acid

Propanoic acid

Acetic acid

Both (a) & (b)

The branch of chemistry which deals with the study of compounds containing carbon as an essential elements is called

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Physical

Inorganic

Nuclear

Organic

Domestic waste mostly constitutes

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Non-biodegradable pollution

Biodegradable pollution

Effluents

Air pollution

In a Galvanic cell

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Chemical energy is converted into electricity

Chemical energy is converted into heat

Electrical energy is converted into heat

Electrical energy is converted into chemical energy

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Molar mass of high molecular w.f. polymers ranges from:

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1000 to 10000

10000 to 100000

100000 to 1000000

1000 to 100000000

General formula of carbocyclic acids is:

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RCOH

RCOR

RCOOR

R-OH

When a carboxylic acid reacts with a metal ______ gas is evolved

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H₂

CO₂

CI₂

None of these

One of the following bonds is polar but compound is non-polar

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H₂O

NH₃

HCl

CO₂

The sample being analyzed is called

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Electrolyte

Substance

Analyte

All of above

Phenol was discovered by:

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Hofmann

Runge

Henderson

Bakelite

Which statement is incorrect about standard hydrogen electrode

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Its oxidation and reduction potential is zero

It consists of Pt wire dipped on 1 molar HCI solution

The electrolyte is 1 molar NaOH solution

H₂gas is passes in it at 1 atmospheric pressure

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