Question # 1

Orlon is a polymer of

Choose an answer

Tetrafluoroethylene

Acrylonitrile

Ethanoic acid

Benzene

The Electro-negatively difference for ionic bond must be greater than

Choose an answer

1.6

1.7

1.8

1.0

A solution is a homogeneous mixture of two or more kinds different :

Choose an answer

Molecular.

Covalent substance

Ionic Substances

Both (a) and (c)

The reagents like KMnO_{4 and HCL cannot be filtered through Gooch crucible if its base is covered with :}

Choose an answer

Butterfly paper.

Ordinay paper.

Flying paper.

Filter paper.

The size of electronic shell is described by

Choose an answer

Azimuthal Q. no

Magnetic Q.No

Spin Q. No

Principle Q. No

Corrosion of iron can be prevented by coating the surface with

Choose an answer

Zn

Sn

Ni

Any of the above

Mottling of teeth is due to presence of an element in drinking water

Choose an answer

Mercury

Fluorine

Boron

Chlorine

A large value of K_cmeans that at equilibrium :

Choose an answer

Less reactant and more products.

Reactants and product in same amounts.

More reactants and less products.

None of above.

3.01 x 10²²Ag⁺ions is present in

Choose an answer

85 grams AgNO₃

0.85 g AgNO₃

8.5 g AgNO₃

18.5 g AgNO₃

Choose an answer

0 1

0 2

1 1

1 2

The sum of mole percent of all the components of solution is always equal to :

Choose an answer

Less than 100

One

100

10

6-d series is in the period :

Choose an answer

4th

5th

6th

7th

Which of the following is complex?

Choose an answer

CaSO₄. 0.5H₂O

(C₆H₁₀O₅)_n

C₆H₁₂O₆

CH₄

Which of the following will not give iodoform test?

Choose an answer

Ethanol

Ethanal

Isopropyl alcohol

Benzyl alcohol

Which one does not declourized KMnO₄

Choose an answer

Alkenes

Alkynes

Bezene

All above

Electrochemical series is a list of element S arranged into the increasing order of their

Choose an answer

Standard oxidation potential

Standard reduction potential

Cell voltage

Ionization potential

Solution which distill without change in composition or temperature are called

Choose an answer

Amorphous

Azeotropic mixture

Ideal

Super saturated

Which of the following does not react with phenyl hydrazine?

Choose an answer

Ethanol

Ethanal

Acetone

Acetophenone

The formation of compounds like PF₅, BCI₃, SF₆indicates that

Choose an answer

These halides are ionic

These halides are covalent

They are Lewis acids

Octet rule not obeyed so the rule is not universal

Depletion of ozone layer is due to

Choose an answer

Oxides of nitrogen

Oxides of carbon

Oxides of sulphur

None of the above

The unit rate of constan K ismole^-1 dm³S^-1for a chemical reaction, the order of reaction is :

Choose an answer

3

2

1

0

The oxides of which of the following elements will be acidic in character

Choose an answer

Mg

Rb

Li

Cl

Which statement is true about a free radical

Choose an answer

An atom with a positive charge

An atom with a negative charge

An atom with a lone pair of electrons

An atom with unpaired electron

The experimental relationship between a reaction rate and the concentration of reactants is called

Choose an answer

Order or reaction

Rate law

Activated complex

Molecularity

Ketones are prepared by the oxidation of

Choose an answer

Primary alcohol

Secondary alcohol

Tertiary alcohol

None of these

Which of the following are thermoplastic materials

Choose an answer

PVC

Polystyrenes

Polyethylene

All these

The reaction of sodium with ethanol gives

Choose an answer

CH₃OH

NaH

H₂O

H₂

Choose an answer

di(4-bormophenyl) method

Methanol

Propan-1-ol

Propan-2-ol

When a carboxylic acid reacts with a metal ______ gas is evolved

Choose an answer

H₂

CO₂

CI₂

None of these

F₂, Cl₂, Br₂and l₂lie below SHE is the Electro chemical series that is why these

Choose an answer

Undergo reduction

Undergo oxidation

Liberate H₂gas with steam

None of these

The compound prepared by a substitution reaction of benzene is

Choose an answer

Acetophenone

Glyoxal

Cyclohexame

Hexabromo cyclohexane

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