Question # 1

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

Ozone is present in layer around earth:

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atmosphere

tropospher

stratosphere

thermosphere

Temperature required for the dehydration of ethanol into ethene in the presence of HaSOu is

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130°C

170°C

175°C

180°C

Which is not the affect of polluted air on environment

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acid rain

smog

ozone

global warming

Which of the following substance is used as filler or additive in paper making:

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Glucose

Starch

Fructose

Cellulose

New3spapers can be recycled again and again by how many times?

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5

3

2

4

Hydrolysis of alkyl nitriles gives:

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Alkane

Alkyl halide

Alkyl nitride

Minerals acids & Alkalies

Stronger is the oxidizing agent, stronger is the

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emf of cell

Oxidation potential

Reduction potential

Ozone is a gas having boiling point

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Unstable

High

Low

Moderate

The simplest separating unit of a polymer is called:

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Monomer

Dimer

Trimer

Macromer

Lind's ,method for liquefaction of gases is based on the principle of:

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Graham's law of diffusion

Joule Thomson effect

Avogadro's hypothesis

Dalton's law of partial pressure

Termochemistry is the study of chemical reaction accompanying

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Heat change

Rate change

Mass change

Volume change

Reduction or oxidation potential of standard hydrogen electrode is :

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0.0 Volt

0.8Volt

1.0Volt

1.8Volt

The uncertainty principle was stated only

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De Brogilie

Heinsenberg

Einstein

Schrodinger

What is the packet of energy called?

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Electron

Photon

Positron

Proton

The method used only for the production of symmetrical alkanes

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Kolb's method

Clemmenen

Cannizzaro

Wolf kishner

Hydrocarbons contain

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C and S only

C and H only

C, H, and O only

C, H, O and N only

Which of the following statement is correct for a chemical reaction to occur molecules of substances must

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Collide with each other

Collide with energy more than activation energy

Collide with energy less than activation energy

Collide with high frequency

Most reactive halide towards S_N1 reaction is

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n-Butyl chloride

sec-Butyl chloride

tert-Butyl choride

Allyl chloride

How does the ionization energy of 1st group elements vary?

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Increases down the group

Decreases down the group

Remains unchanged

Variation is not regular

P₂O₅is heated with water to give

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Hypophosphorus acid

Phosphorus acid

Hypophosphorus acid

Orthophosphorus acid

The quantum number which describe the orientation of the orbitals is

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Spin quantum number

Principle quantum number

Azimathal quantum number

Magnetic quantum number

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