Question # 1

Quantum number value for 2p orbitals are:

Choose an answer

n=2 ,l=1

n=1 ,l=2

n= ,l=0

n=2 ,l=0

Which reaction yields Bakelite?

Choose an answer

Urea with HCHO

Tetramethyl glycol with Hezamethylene diisocyanate

Phenol and HCHO

Ethylene glycol and Dimethylterephthalate

A compound A has a molecular formula C₂Cl₃OH. It reduces Fehling solution and on oxidation produces a monocarboxylic acid B.A can also be obtained by the action of Cl₂on Ethanol. A is

Choose an answer

Chloral hydrate

CHCl₃

CH₃Cl

Chloroacetic acid

A dry alkaline cell has porous Zn anode and MnO₂as cathode the electrolyte used is

Choose an answer

Ca(OH)₂

NaOH

KOH

NH₄OH

The solution left after the formation of crystals is called :

Choose an answer

Residue.

Filtrate.

Mother liquor.

None of these.

Which of the following will have the highest boiling point

Choose an answer

Methanol

Ethanol

Propanal

2-hexanone

Catalyst in the reaction ROH + SOCl₂-------> RCL+SO₂+HCl is:

Choose an answer

ZnCl₂

Pyridine

H₂SO₄

Either

The organic compounds containing Ph-OH group are called:

Choose an answer

Phenol

aldehyde

Keton

Carboxylic acids

Solutions containing relatively lower concentrations of solute are called :

Choose an answer

Concentrated solutions.

Lighter solutions.

Dilute solutions.

None of above.

Reaction of acids with alcohols is also known as

Choose an answer

Esterification

Saponification

Alkalization

None

A carbon atom carrying a postitive charge and attached to three other atoms of groups is called

Choose an answer

Caronium ion

Carbanion

Oconium ion

Carba ion

N₂ + O₂ ⇌2NO

The unit of K_c for tis reaction will be:

Choose an answer

No unit

mol^-2 dm^-3

mol^-1 dm^-3

mol^-2 dm⁺³

I-Chloropropane has two isomers, it is an example of

Choose an answer

Chain isomerism

Position isomerism

Functional group isomerism

Metamerism

What will be the weight of deposited silver on passing 965 coulombs of electricity in solution of AgNO₃?

Choose an answer

1.08 g

2.16 g

0.54 g

0.27 g

A nuclophile must

Choose an answer

Be an atom

A group of atoms

Have a lone pair

Be negatively charged

An azeotropic mixture showing it's positive deviation from Raoult's law, the volume of the mixture is :

Choose an answer

Slightly more than the total volume of the components.

Slightly less than the total volume of the components.

Equal to the total volume of the components.

None of these.

Sulphonation of benzoic acid produces mainly

Choose an answer

o-Sulphobenzoic acid

m-sulohobenzoic acid

p-Sulphobenzoic acid

o-and p-Sulphobenzoic acid

The next homologue of C₁₀H₂₂will be

Choose an answer

C₉H₂₀

C₁₂H₂₆

C₁₁H₂₄

C₁₃H₂₈

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

Which one of the following correctly describes the acid properties of phenol

Choose an answer

Stronger than HCI

Stronger than carboxylic acid

An acid stronger than carbonic acid

An acid weaker than carboxylic acid

The homologous series of aldehydes and ketones have general formula:

Choose an answer

C_nH_2nO

C_nH_nO

C_nH_2n-1O

C_nH_nO_n

A gas bulb is filled with NO₂gas and immersed in an ice bath at 0°C which becomes colourless after sometimes. This colourless gas will be

Choose an answer

NO₂

N₂O

N₂O₄

N₂O₅

Choose an answer

Forward reaction is favoured

Backward reaction is favoured

No effect

None of the above

If pH of buffer of 1 mole dm^-3of HCOOH + 0.1 mole dm^-3HCOONa having pKa = 3.78 is

Choose an answer

1.78

2.78

3.78

4.78

If 5.85 of NaCI are dissolved in 90g of water the mole fraction of NaCI is

Choose an answer

0.1

0.01

0.2

0.0196

What is the shape of Fe(CO)₅molecule?

Choose an answer

Tetrahedral

Octahedral

Trigonal bipyramidal

Square pyramidal

Unsaturated hydrocarbon containing a double bond are called

Choose an answer

paraffin

Alkanes

Olefins

Acetylene

For what value ofK_{c almost forward reaction is complete :}

Choose an answer

K_{c =}10³⁰

K_{c =}10^-30

K_{c =}0

K_{c =}1

The number of unpaired electrons in ferrous ion ( Z - 26) is

Choose an answer

3

2

4

5

By reaction Grignard's reagent with the HCHO we get

Choose an answer

1° - alcohol

2° - alcohol

3° - alcohol

All of these

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

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