Question # 1

Photo chemical smog contains _________ as main reactants:

Choose an answer

nitrons oxide and unburnt hydrocarbons

niliric oxide and unburnt hydrocarbons

NO and burnt hydrocarbons

N₂O and burnt hydrocarbons

Oxidation reduction is done by

Choose an answer

Oxidoreductase

Lipases

Lyase

None of these

What element is not essential for the growth of plants and not required in the fertilizers?

Choose an answer

nitrogen

potassium

phosphorus

barium

Vegetable oil are

Choose an answer

unsaturated fatty acids

glycerides of unsaturated fatty acids

glycerides of saturated fatty acids

essential oil obtained from plants

CO₂gas is dissolved in water due

Choose an answer

dipole-dipole interactions

higher molecular mass of CO₂

ion dipole attractive forces

hydrogen bonding

A polymeric substance that is formed in the liquid state and then hardened to a rigid solid is called

Choose an answer

Fibre

Plastic

Varnish

Polyamide resin

The fertilizer contains 33___35%n is:

Choose an answer

ammonium nitrate

potassium nitrate

urea

ammonia

In proteins, the alpha-helix and Beta-pleated sheet are examples of

Choose an answer

^{Primary Structure}

Secondary Structure

Tertiary Structure

Quaternary Structure

Anline is a derivative of:

Choose an answer

alkane

alkene

aromatic hydrocarbon

alicyclic

Which of the following gas cannot be liquefied by Linde s method

Choose an answer

H₂O vapours

N₂

H₂

CO₂

Which one of the following is the most abundant organic substance found in nature?

Choose an answer

fructose

starch

glucose

cellulose

The osmotic pressure of a dilute solution is directly proportional to the

Choose an answer

Diffusion rate of the solute

Ionic concentration

Elevation in boiling point

Flow of solvent from a concentrated to a dilute solution

The solubility product of AgCl is 2.0 x 10^-10mol²dm^-6The maximum concentration of Ag⁺ions in the solution is

Choose an answer

2.0 x 10^-10mol dm^-3

1.41 x 10^-5mol dm^-3

1.0 x 10^-10mol dm^-3

4.0 x 10^-20mol dm^-3

The process of osmosis was first discovered by

Choose an answer

Nollet

Pfeffer

Traube

Dutrochet

An azeotropic mixture of two liquids boils at a lower temperature than either of them when :

Choose an answer

It is saturated.

It shows positive deviation from Raoult's law.

It show negative deviation from Raoult's law.

It is metastable.

Unsaturated hydrocarbon containing a double bond are called

Choose an answer

paraffin

Alkanes

Olefins

Acetylene

The coordination number of iron in [Fe(H₂O)₆]³⁺is

Choose an answer

2

3

4

6

Acid rains are produced by

Choose an answer

Excess NO₂and SO₂from burining fossil fuels

Excess production of NH₃by industry and coal gas

Excess release of carbon monoxide by incomplete combustion

Excess formation of CO₂by combustion and animal respiration

Besides Zn and Cu , German silver contains the metal

Choose an answer

Sn

Ag

Ni

Mg

Heaviest particle is

Choose an answer

Meson

Neutron

Proton

Electron

In the electrolysis of fused bauxite (Al₂O₃2H₂O) with fused Cryolite (Na₃AlF₆) using carbon rods as anode. The product obtained at cathode is

Choose an answer

Na metal

F₂gas

Al metal

O₂gas

Which compound contains - OH in their molecule

Choose an answer

Alcohol

Phenol

Alcohol and phenol

Ether

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