Question # 1

Glyptal polymer is obtained from glycerol on reacting with

Choose an answer

Malonic acid

Phthalic acid

Maleic acid

Acetic acid

What is the volume in cm³of 3.01 x 10²³molecules of O₂gas at S.T.P

Choose an answer

1000 cm³

11000 cm³

1120 cm³

11200 cm³

Acetic acids react with PCI5 giving:

Choose an answer

Acetamide

Acetyl chloride

Alcohol

Ether

Which is used to remove air bubbles form metals?

Choose an answer

B

Be

Mg

Al

The general formula of alkyl halides is

Choose an answer

C_nH_2nX

C_nH_2n-1X

C_nH_2n+1X

C_nH_2n-2X

Ethanol containing some methanol is called

Choose an answer

Absolute spirit

Rectified spirit

Power alcohol

Methylated spirit

XeF₄has shape of

Choose an answer

Sphere

Trigonal bipyramidal

Tetrahedral

Square planar

Product of concentration of ions raised to the power equal to the co-efficient of ions in balanced equation for saturated solution of a salt is called

Choose an answer

Ionic product

Equilibrium constant K_c

K_w

Solubility product (K_sp)

The radiations with wavelength shorter than violet light are called

Choose an answer

Ultraviolet

Infrared

Microwave

Radio frequency

The elimination of HX from adjacent carbon atoms is called

Choose an answer

Halogenations

Hydrohalogenation

Dehydrohalogenation

Hydration

Mass of simple electron is:

Choose an answer

9.1 x 10^-31 kg

9.1 x 10^-30 kg

1.66 x 10^-31 kg

9.1 x 10^-31 kg

Macromolecules or polymers are large molecules built up from small molecules called monomers. This hypothesis put forward by

Choose an answer

Schrodixger

Standinger

Lewis

Newton

Potassium ferrocyanide is a

Choose an answer

Mixed salt

Double salt

Complex salt

Normal salt

Which class of compound is more reactive

Choose an answer

Alkane

Alkene

Alkyne

None

Which of the following is not the reactions of lithium

Choose an answer

The widely used nitrogen fertilizer that contains about 46% nitrogen is

Choose an answer

Ammonia

Ammonium nitrate

Ammonium sulphate

Urea

Aldehydes are produce in atmosphere by

Choose an answer

Oxidation of secondary alcohols

Reduction of alkenes

Reaction of oxygen atoms with hydrocarbons

Reaction of oxygen atoms with ozone

The number of unpaired electrons in the p-subshell of oxygen atom

Choose an answer

1

2

3

4

Octane number is zero for

Choose an answer

n-Heptane

Isooctane

n-Hexane

Isoheptane

2.5 faradays of electricity is passed through solution of CuSO_{4. The number of gram equivalents of copper deposited on the cathode would be}

Choose an answer

1

2

2.5

1.25

Alcohols of low molecular weight are

Choose an answer

Soluble in water

Soluble in water on heating

Insoluble in water

Insoluble in all solvents

Two moles of acetic acid are heated with P₂O₅the product formed is

Choose an answer

2 moles of ethyl alcohol

Formic anhydride

Acetic anhydride

2 moles of methyl cyanide

The percentage of nitrogen in ammonia is

Choose an answer

80%

82%

90%

50%

Complex protein molecules which catalyses the organic reactions in the living cells are called

Choose an answer

Living organisms

Enzymes

Viruses

Bacteria

The mass of sulphur which combines with 24 grams oxygen to form SO₂

Choose an answer

32 gram

24 gram

8 gram

12 gram

type of hybridization in CH≡CH is:

Choose an answer

sp

sp²

sp³

dsp²

Ozone depletion in stratosphere shall result in

Choose an answer

Forest fires

Increased incidence of skin cancer

Global warming

None of the above

Find the magnetic moment of a divalent ion in aqueous solution if its atomic number is 25

Choose an answer

3.0 BM

4.9 BM

5.9 BM

6.9 BM

Aldehyde and small methyl ketones form crystalline ______ ppts with saturated sodium bisulphate solution

Choose an answer

White

Red

Yellow

None of these

Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?

Choose an answer

Fullerences

Freons

Polyhalogens

Ferrocene

Which of the following elements is not present in all proteins?

Choose an answer

Carbon

Hydrogen

Nitrogen

Sulphur

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