Question # 1

Ultraviolet radiation from sun causes a reaction that produces

Choose an answer

Fluorides

Carbon monoxide

Sulphur dioxide

Ozone

Use of glycol as anti freeze in the automobile is an important application of

Choose an answer

Colligative property

Raoult's law

Fractional crystallization

Prrhenivs law

Which one of the following solution will have higher vapour pressure than that of water

Choose an answer

Aqueous solution of methanol

Aqueous solution of HCI

Aqueous solution of glucose

Aqueous solution of urea

Which of the following salts mixed with ice to make the freezing mixture used in ice cream machine

Choose an answer

KNO₃

NH₄NO₃

AgNO₃

Mg(NO₃)₂

CFCs undergo homolytic fission by uv light in the stratosphere which radical could result from this irradiations of CHCICF₂Cl.

Choose an answer

CHF Cl C FCl

CH Cl CF₂Cl

CHF CF₂Cl

C FCl CF₂Cl

Which is the used as test for the presence of alkenes

Choose an answer

Reaction of cold dilute alkaline KMnO₄

Combustion

Polymerization

Catalytic hydrogenation

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

Choose an answer

Butan-1-ol

Butan-2-ol

2-methyl propan-1-ol

2-methyl propan-2-ol

The other name for distribution law is

Choose an answer

Dispersive law

Partition law

Avogadro's law

separation law

Among the nitrogen containing fertilizer, the one with about 82% nitrogen content is

Choose an answer

Ammonium nitrate

Ammonia

Ammonium phosphate

Ammonium sulphate

In which reaction, aromatic aldehyde is treated with acid anhydride in the presence of corresponding salt of the acid to give unsaturated aromatic acid?

Choose an answer

Friedel-Crafts reaction

Perkin's reaction

Wurtz reaction

None of these

The state of hybridization of carbon atom in methane is:

Choose an answer

sp³

sp²

sp

dsp²

6-d series is in the period :

Choose an answer

4th

5th

6th

7th

Which of the following compounds gives trichoromethane on distilling with bleaching power?

Choose an answer

Methanal

Phenol

Ethanol

methanol

Which of the following d-block elements can show the highest oxidation number in its compounds

Choose an answer

Chromium

Copper

Nickel

Manganese

The order of reactivity of halogen acids towards alkenes

Choose an answer

HCl > HBr > Hl

HBr > HCl > HI

HCl > HBr

HI > HBr > HCl

The next homologue of C₁₀H₂₂will be

Choose an answer

C₉H₂₀

C₁₂H₂₆

C₁₁H₂₄

C₁₃H₂₈

During the preparation of alkanes the hydrogenation of alkenes or alkynes the catalyst may be

Choose an answer

H₂SO₄

Ni

Fe₂O₃

Al₂O₃

Purine derivative among the following bases is

Choose an answer

Thymine

Uracil

Guanine

Cytosine

The rate of E₁reaction depends upon

Choose an answer

The concentration of substrate

The concentration of nucleophile

THe concentration of substrate as well as nucleophile

None of the above

Orlon is a polymer of

Choose an answer

Tetrafluoroethylene

Acrylonitrile

Ethanoic acid

Benzene

Organic compounds containing halogen atom are called:

Choose an answer

R---OH

R----X

R----NH₂

R----COH

Which of the following gives iodoform on heating with a solution of I₂containing Na₂CO₃?

Choose an answer

Ethyl alcohol

Acetone

Ethyl alcohol as well as acetone

Methyl alcohol

The organic compounds which derivative of hydrocarbons due to oxygen is:

Choose an answer

Phenol

Alcohol

Alkyl halide

Either

The boiling point of glycerol is more than propanal because of

Choose an answer

Hybridisation

H-bonding

Resonance

All these factors

When acetamide reacts with Br₂and caustic soda, then we get

Choose an answer

Acetic acid

Bromoacetic acid

Methyl amine

Ethylamine

Aluminium oxide is:

Choose an answer

Acidic oxide

Basic oxide

Amphoteric oxided

None of these

Aledehydes ketones can be prepared form alcohols by their:

Choose an answer

Reduction

Oxidation

Decomposition

Synthesis

10g Of NaOH Has Been Dissolved Perdm³of solution. The morality of solution is :

Choose an answer

0.025 M

1.5 M

0.1 M

.25 M

Which of the following is not an element?

Choose an answer

Graphite

Diamond

22-Carat gold

Rhombic sulphur

Choose an answer

0

1

2

3

Which of the following compounds on oxidation gives benzoic acid?

Choose an answer

Chlorophenol

Chlorotoluene

Chlorobenzene

Benzyl chloride

More Classes

Other Links

ECAT Chemistry Online Test 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

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