Question # 1

The credit of discovering neutron goes to

Choose an answer

Rutherford

Langmuir

Chadwick

Austen

Which of the following does not reflect the periodicity of elements?

Choose an answer

Bonding behaviour

Electronegativity

Ionisation potential

Neutron/proton ratio.

All the naturally occurring processes proceed spontaneously in a direction which lead to

Choose an answer

Decrease of entropy

Increase of enthalpy

Increase of free energy

Decrease of free energy

SO₂ and NO₂ pollution by increasing

Choose an answer

Alkalinity

Acidity

Neutrality

Buffer action

Isopropyl alcohol on oxidation forms

Choose an answer

Acetone

Ether

Ethylene

Acetaldehyde

In a reversible chemical reaction having two reactants in equilibrium if the concentration of the reactants are doubled then the equilibrium constant will

Choose an answer

Also be doubled

Be halved

Becomes one fourth

Remains the same

The rate of reaction between A and B increases by a factor of 100 when the concentration with respect to A is increased 10 folds the order of reaction w.r.t A is

Choose an answer

10

1

4

2

On heating acetaldehyde with ammonical silver nitrate solution we get

Choose an answer

CH₃OH

Silver acetate

HCHO

Silver mirror

Carbon atom holding halogen in aryl halides is

Choose an answer

Sp²-hybridesed

Sp³-hybridesed

Sp-hybridesed

Sp³d -hybridesed

With increasing principle quantum number the energy difference between adjacent energy levels in H atom

Choose an answer

Decreases

Increases

Remains constant

Decreases for low value of Z and increases for higher value of Z.

2 g oxygen contains number of atoms equal to that in

Choose an answer

0.5 g of hydrogen

4 g of sulphur

7 g of nitrogen

2.3 g of sodium

Which of the following is acidic?

Choose an answer

SO₃

N₂O

BeO

HgO

In the manufacture of iron from haematite, limestone is added to act as.

Choose an answer

Flux

A reducing agent

Slag

An oxidizing agent

The halide which is not hydrolysed is

Choose an answer

SiCl₄

SiF₄

CCl₄

PbCl₄

Which species represents the electrpohile in aromatic nitrotaion?

Choose an answer

NO^-₂

NO⁺₂

NO2

NO^-₃

What happens when CCl₄is treated with AgNO₃solution?

Choose an answer

NO₂will be evolved

A white ppt. of AgCl will form

CCl₄will dissolve in AgNO₃solution

Nothing will happen

The number of electrons in the M shell of the element with atomic number 24 is

Choose an answer

24

12

13

8

Mild oxidation of glycerol with H₂O₂/FeSO_{4 gives}

Choose an answer

Glyceraldehyde

Dihydroxy acetone

Glycerose

None

Toluene can be oxidized to benzoic acid by

Choose an answer

KMnO₄(alk)

K₂Cr₂O₇(acidic)

Both

None

The structure of XeF6

Choose an answer

Distorted octahedral

Pyramidal

Tetrahedral

None of the above

Which of the following fluorides does not exist?

Choose an answer

NF₅

PF₅

AsF₅

SbF₅

The essential component of organic compound is

Choose an answer

O

C

P

N

More Classes

Other Links

Chemistry General Science Test Hard 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