Question # 1

d-d transition cannot be shows by

Choose an answer

Cu+1

Sc+3

Zn+2

All

When wine is put in air, it becomes sour due to

Choose an answer

Oxidation of C2H5OH

Formation of C2H5NH2

Reduction of C2H5OH

Dissolution of CO2

Born-Haber cycle is an application of

Choose an answer

Hess's law

1" law of thermodynamics

Avogadro's law

1law of thermochemistry

Which of following factor affect vapour pressure of a liquid?

Choose an answer

temperature

inter molecules forces

size of the molecules

all of these

NO. of naturally occuring aminoacids is

Choose an answer

10

20

30

40

Consider the following reaction
R-CHO + 2Ag(NH3)2OH + R-COONH+ +2Ag+2NH3+H2OThis reaction represents

Choose an answer

Fehling test

Ninhydrin test

Benedict lest

Tollen's test

The reaction C2H5CI + aqueous KOH---------C2H5OH+ KCI is

Choose an answer

Electrophilic addition

Nucleophilic addition

Electrophilic substitution

Nucleophilic substitution

A system absorbs 100 kJ heat and performs 50 kJ work on the surroundings. The increase in internal energy of the system is

Choose an answer

50kJ

100 kJ

150kJ

5000 kJ

The ozone depletion in the stratophere is mainly due to the reaction of ozone with

Choose an answer

Freons

CFCs

Both A and B

None

Transformation is a cyclic process in which used plactic is

Choose an answer

Remelted and styrene is added

Converted into low quality substance

Converted back into original components

None of these

The rate of diffusion of a gas is inversely proportional to:

Choose an answer

Density of a gas

Velocity of the gas

Viscosity of the gas

All of above

Which decolourizes the colour of Br₃

Choose an answer

CH₄

CH_3-CH₃

CH_3-CH_3-CH₃

CH₂₌CH₂

For preparing an alkane, a concentrated aqueous solution of sodium or potassium salt of saturated carboxylic acid is subjected to

Choose an answer

Hydrolysis

Oxidation

Hydrogenation

Electrolysis

Tripple bond is present in

Choose an answer

O₂

H₂

N₂

Cl₂

If the value of azimuthal quantum number is 3, then values of m the magnetic quantum no. will be

Choose an answer

0, 1, 2, 3

+3, +2, +1, -1, -2, -3

0, -1, -2 ,-3

-3, 0, +3

The rate of reaction :

Choose an answer

Remain same as reaction proceeds.

May decrease or increase as reaction proceeds .

Increase as reaction proceeds.

Decreases as reaction proceeds.

In physical and chemical properties, transition elements show

Choose an answer

Similarities

Dissimilarities

Both of these

Somestimes similarities, sometimes dissimilarities

Which of the following statements is true about Galvanic cell

Choose an answer

Anode is negatively charged

Reduction occurs at anode

Cathode is positively charge

Reduction occurs at cathode

On heating acetaldehyde with ammonical silver nitrate solution, we get

Choose an answer

CH₃OH

Silver acetate

HCHO

Silver mirror

Prevention of corrosion of iron by Zn coating is called

Choose an answer

Galvanization

Cathodic protection

Electrolysis

Photoelectrolysis

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

Which of the following has highest dipole moment?

Choose an answer

NH₃

PH₃

AsH₃

SbH₃

More Classes

Other Links

Chemistry General Science Test Medium 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