Question # 1

Energy of atom in compound is

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Higher than individual atom

Lower than individual atom

equal to individual atom

Impossible to predict

Hydrocarbons, SO₂, CO, NH₃nitrogen oxides and compounds of fluorine are called

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Primary pollutant

Secondary pollutant

Tertiary pollutant

None of these

What is distilled first?

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Liquid CO₂

Liquid N₂

Liquid O₂

Liquid H₂

Indicate the number of open chain isomers of C6H14

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4

5

6

7

Example of basic essential amino acids

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Arginine

Histidine

Lysine

All of the above

Ozone in most of the tropical regions acts as a pollutant and cause

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damages to eyes

aggravates asthma

chest discomfort

all of these

Glucose forms a polymer which is stored in liver the name of this polymer is:

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glycogen

starch

cellulose

arnylose

Which one of the following is a water soluble vitamin?

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niacin

rioflavin

trypsin

ascorobic acid

Agriculture consumes part of fresh water:

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1%

2%

69%

23%

Total number of valence electrons in CH4

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8

9

10

12

Which of the following polymer has application in paper industry

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Starch

Glycogen

Protein

All

What is the shape of Fe(CO)₅molecule?

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Tetrahedral

Octahedral

Trigonal bipyramidal

Square pyramidal

Macro-nutrients are required in quantities ranging from

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5 kg - 200 kg

2 kg - 100 kg

1 kg - 50 kg

10 kg - 100 kg

When carbon dioxide is passed through the R - Mg - X is produced

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Any carboxylic acid

Propanoic acid

Propanedioic acid

None of these

Which of these polymers is an addition polymer

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Nylon 6,6

Polystyrene

Terylene

Epoxy resin

Orbital having same energy is called:

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Hybrid orbital.

Valence orbital.

Degenerate orbital.

D-orbital.

Which of the following elements is not present abundantly in earth's crust?

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Silicon

Aluminium

Sodium

Oxygen

Anode is the surface on which probability of finding electron is:

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50%

Less than 10%.

More than 95%.

Zero.

The formula of curprite is

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Cu₂S

Cus

Cu₂O

CuCO₃

The reduction potential to copper electrode is +0.34 V and that of Zn electrode is -0.76 V. when these two are coupled the e.m.f. of the cell is

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-0.42 V

+0.42

-1.10 V

+1.10 V

The nature of positive ray depend on:

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The nature of electrode.

The nature of discharge tube.

The nature of residual gas.

All of above.

In the presence of high temperature and pressure peat is converted to:

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Lignite

Polymorphism

Polymerization

Catenation

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