Question # 1

In exothermic reversible reaction increase in temperature shift the equilibrium to :

Choose an answer

Remains unchanged.

Product side.

Reactant side.

None of above.

The sample being analyzed is called

Choose an answer

Electrolyte

Substance

Analyte

All of above

Due to the bacterial action on wood it is converted into

Choose an answer

Peat

Lignite

Bituminous coal

Anthracite

Which of the following alcohols cannot be produced by treatment of aldehydes or ketones with NaBH₄or LiAIH₄?

Choose an answer

1-propanol

2-propanol

2-Methyl-2-propanol

Ethanol

Dehydration of an alcohol at 180°

Choose an answer

Alkene

Ether

Ester

An hydride

Sp³hybird orbitals are oriented at an angle of

Choose an answer

107.5°

108.5°

109.5°

103.5°

According to VSEPR theory, the shape of the water molecule is

Choose an answer

Octahedral

Distorted tetrahedral

Planar triangle

Linear

Bessemer converter is used in the manufacture of

Choose an answer

Pig iron

Steel

Wrought iron

Cast iron

Choose an answer

Measuring pH

Measuring density

Titration against standard NaOH

Titration against standard KMnO₄solution

Kolb's method is not useful for the production of

Choose an answer

Methane

Ethane

Propane

Butane

In H₂O molecule the bond angle is

Choose an answer

90°

109.5°

107°

104.5°

The shape of CIO^-₃according to valence shell electron pair repulsion theory will be

Choose an answer

Planar triangle

Pyramidal

Tetrahedral

Square planar

Which of the following order is incorrect w.r.t property indicated?

Choose an answer

Formic acid > Acetic acid > Propionic acid (ACID STRENGTH)

Cyclohexanol < Phenol < Benzoic acid ( ACID STRENGTH)

Benzamide < Aniline < Cyclohexylamine ( ACID STRENGTH)

FCH₂COOH > CICH₂COOH > BrCH₂COOH (ACID STRENGTH)

Which is more active ?

Choose an answer

Alkanes

Alkenes

Alkynes

Benzene

All are ortho & Para directing except

Choose an answer

X

OH

NR₃

NH₂

Ultraviolet radiation from sun causes a reaction that produces

Choose an answer

Fluorides

Carbon monoxide

Sulphur dioxide

Ozone

Hydrocarbons are divided into aliphatic, alicyclic and aromatic which structure among the following show an alicyclic hydrocarbon

Choose an answer

If the rate of reaction is independent of the concentration of the reactant, the reaction is of

Choose an answer

Zero order

First order

Second order

Third order

Zeotropic mixture

Choose an answer

Obey Henry's law

Obey Raoult's law

Does not obey Raoult's law

Obey Dalton's law

A balloon contains 0.02 gram of H₂gas, it contains H₂molecules

Choose an answer

6.02 x 10²³

3.01 x 10²²

6.02 x 10²¹

3.01 x 10²¹

For which one of the following pairs of compounds can the members be distinguished by means of Tollen's test

Choose an answer

HCHO and CH₃CHO

CH₃CHO and CH₃COCH

CH₃COCH₃and C₆H₅COCH₃

CH₃COOH and CH₃COOCH₃

Carboxylic acids are reduced to in presence of NaAIH₄

Choose an answer

Esters

Acetyl chloride

alcohol

Aldehydes

When the rate of formation of reactants is equal to the rate of formation of products, this is known as

Choose an answer

Chemical reaction

Chemical equilibrium

Chemical kinetics

None

Alkyl halides when reduced with nascent hydrogen in the presence of Zn + HCI, are converted to

Choose an answer

Alkynes

Alkenes

Alkanes

Alcohol

Nitrogen in NH₃is sp³hybridized but the bond angle in NH₃is 107° and not 109.5° due to

Choose an answer

sp³orbital planar

sp³orbital trigonal

Repulsion between lone pair and bonded pairs

None of them

The avtive mass of 64 g of HI in a two litre flask would be

Choose an answer

2

1

5

0.25

3 moles of ethanol react with one mole of phosphorus tribromide to from 3 moles of bromoethane and on mole of X. Which of the following is X?

Choose an answer

H₃PO₄

H₃PO₂

HPO₃

H₃PO₃

Which is not state function

Choose an answer

Temperature

Enthaply

Entropy

Internal energy

The rate equation for a reaction is Rate =k[A]. what are unit of K ?

Choose an answer

Mole-1 dm³ S^-1

Mole dm³ S^-1

Moledm³

S^-1

NO and NO₂gases in atmosphere are represented by

Choose an answer

NO

NO₄

NO_x

N_xO_y

Which statement is not true. A solution is a homogeneous mixture of

Choose an answer

Two ionic substance like NaCl and HCl

Two molecular substances sugar and water

A solute and a solvent 1% NaHCO₃in water

NaCl and sand

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