Question # 1

Which one of the following reaction of carboxylic acid is reversible?

Choose an answer

Esterification

Salt formation

Reaction with PCI5

Reaction with SOCI2

Which of the following is addition polymerization

Choose an answer

PVA

Polystyrene

Both

None

Which one of the following is not true of metallic bonding?

Choose an answer

it gives rise to excellent electrical conductivity

electrons are following to move throughout the structure

the strength of metallic bonds increases down a group

the strength of metallic bonding affects the boiling point of metals

In the transition state of S2 mechanism reaction with alkyl halides, which of the following orbital hybridization is involved

Choose an answer

sp³

sp

sp²

dsp³

Biochemical oxygen demand is the capacity of organic matter in natural water to consume oxygen

Choose an answer

2 days

5 days

6 days

7 days

The potential difference set up at 25 C and 1 atm when clectrode is dipped m Tis one molar ionic sohution is called

Choose an answer

Single electrode potential

electrode potential

Standard electrode potential

Standard hydrogen electrode

Reaction of acetic acid with LiAIH4 gives

Choose an answer

Ethanol

Ethanal

Ethane

Ethyl acetate

Which is not a calcareous material?

Choose an answer

lime

clay

marble

marine shell

When chlorofluoro carbon are subjected to U.V they form

Choose an answer

Cations

Aninons

Free radicals

None of these

In many countries plastic waste is collected separetaly and sorted.Some of this is incinerated to provide heat for power stations.
Why is pvc polyvinylchloride,removed from any waste that is to be incinerated?

Choose an answer

It can be melted down and re-used

its combustion products are harmful

it destroys the ozone layer

it does not burn easily

Dissolved impurities of potable water can be separated by the process of

Choose an answer

reduction

Aeration

Electrolysis

Co-angulation

Atoms can be evident by use of electron microscope, field ionization microscope and:

Choose an answer

x-rays

Video camera

Telescope

Compound microscope

Ethyl bromide on treatment with alcoholic KOH gives

Choose an answer

Ethylene

Ethanol

Acetic Acid

Ethane

The hydroxyl derivatives of aromatic hydrocarbons which have the -OH group directly bonded to the ring C-atom are called

Choose an answer

Alcohols

Ketones

Esters

Phenols

In a Galvanic cell

Choose an answer

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

Which formula represents the organic compound formed by the reaction of propanoic acid with methanol in the presence of concentrated sulphuric acid as a catalyst

Choose an answer

CH₃CH₂COCH₃

CH₃CH₂CO₂CH₃

CH₃CO₂CH₂CH₃

CH₃CH₂CH₂CO₂CH₃

Which of the following is not aromatic hydrogencarbon

Choose an answer

Benzene

Naphthalene

Toluene

Cyclohexene

Which of the following in incorrect?

Choose an answer

FelCl₃is used in the detection of phenols

Fehling solution is used in the detection of glucose

Tollen's reagent is used in detection of unsaturation

NaHSO₃is used in the detection of carbonyl compounds

1-Chlorobutane on reaction with alcoholic potash gives

Choose an answer

But 1-ene

Butan-1-ol

But-2-ene

Butan-2-ol

A fuel has the same knocking property as a mixture of 70 isooctane (2, 2, 4- trimethyl pentane) and 30% n-heptane by volume the octane number of the fuel is

Choose an answer

100

70

50

40

In sp²type hybridization the three equivalent sp²orbitals lie in the same plane and at angle of

Choose an answer

0°

60°

120°

180°

Atoms and molecules can either gain or lose electrons, forming charge particles called:

Choose an answer

Positrons

Photons

Ions

Electrons

More Classes

Other Links

Chemistry General Science Test Medium Mode MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer