Question # 1

Which substance have delta E = Delta H and no pressure - volume work.

Choose an answer

Liquids only

Solids only

Gases only

Liquids and solids

With increases of 10 oC temperature the rate of reaction doubles. This increase in rate of reactions is due to.

Choose an answer

Decrease in activation energy of reaction

Decrease in the number of collisions between reactant molecules

Increase in activation energy of reactants

Increase in number of effective collisions

The mathematical relation between the rate of reaction and the concentrations of the reactants is known as the

Choose an answer

Rate equation

Rate law

Arrhenius equation

Both a and b

In stoichiometric calculations

Choose an answer

The reaction can be reversile

Side products can be formed

Law of conservation of mass may not be obeyed

Law of definite proportions is definitely obeyed

Which properties of liquid is measured by polarimeter

Choose an answer

Conductance

Refractive index

Optical activity

Change in volume

Boiling point of a liquid is high when

Choose an answer

There is no hydrogen bonding

Dipole moment is zero

Inter molecular forces are weak

Hydrogen bonding is present

The rate of reaction

Choose an answer

Increases

Decreases

Remains the same

May decrease of increase

What is bond order.

Choose an answer

Number of unpaired electrons

Number of paired electrons

Number of electrons present in antibonding molecular orbital

Number of bond formed between two atoms after overlap

To achieve a good separation, the two liquids are gently shaken to increase their area of.

Choose an answer

Miscibility

Separation

contact

Solubility

In which one of the following pairs do the molecule have similar shape.

Choose an answer

BF3 and AlCl3

CO2 and H2O

CH4 and PH3

NH3 and BCl3

Many elements have fractional atomic masses. This is because

Choose an answer

The mass of the atom is itself fractional

Atomic masses are average masses of isobars

Atomic masses are average masses of isotopes

Atomic masses are average masses of isotopes proportional to their relative abundance

The azimuthal quantum number / = 2, then M(Magnetic quantum number) can have values as

Choose an answer

+1, -1

+1, 0, -1

+2, +1, 0,1, -1, 2

+3, +2, +1, 0, 1, -2, -3

If fluted fitter paper, rate of filtration increases as compared tot he cone shaped filter paper because.

Choose an answer

It has greater number of holes in it.

It has greater surface are of filtration

Fluted filter paper has greater pore sizes than cone shaped filter paper.

Thickness of paper is more than cone shaped filter paper

Gases exert pressure on the walls of the container becasue the gas molecules.

Choose an answer

Collide with each other

Collide with walls of container

Have definite volume

Obey the gas laws

Choose an answer

Heat of reaction

Heat of sublimation

Heat of neutralization

Heat of combustion

In a solution 7.8 g of benzene and 46 g of toluene is present The mole fraction of benzene is.

Choose an answer

1/2

1/3

1/5

1/6

Colligative properites are the properties of

Choose an answer

Dilute solutions which behave as nearly ideal solution

Concentrated solution which behave as nearly non-ideal solution

Both a and b

Neither a nor b

The line of the balmer series in the visible region of the spectrum, but the limiting line, in the series lies in

Choose an answer

Visible region

X-Ray region

I.R region

U.V. region

More Classes

Other Links

Chemistry Fsc Part 1 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