Question # 1

How many electrons are involved in the formation of signle covalent bond

Choose an answer

One

Two

Three

Four

Covalent Bond involves the

Choose an answer

Sharing of electrons

Repulsion of electrons

Acceptance of electrons

Donation of electrons

How many moles are there in 25 g of H₂SO₄?

Choose an answer

0.765 Moles

0.255 moles

0.4 moles

0.51 moles

The elementss of group 1 and 2 are placed in which block

Choose an answer

s

p

d

f

A sub sheel that cna accommodate 6 electrons is

Choose an answer

b

s

f

p

All bases turn red litmus.

Choose an answer

Blue

White

Pink

Colourless

Whcih types of bond is present between NH3 and BF3

Choose an answer

Covalend Bond

Ionic Bond

Co ordinate covalent bond

Metallic Bond

Which type of reactions speed up gradully?

Choose an answer

Decomposition reaction

Forward reaction

Reverse reactions

Irreversibel reactions

Keeping in view the intermolecular forces of attraction, indicate which compound has the highest boiling point

Choose an answer

H₂S

HF

NH₃

H₂O

What conditon Should be met for the reversible reactio to achieve the state of equilibrium.

Choose an answer

The concentratio of all the reactants and the prodduct should become constant

all the reactants should be converted into the product

50% of the reactant shuld be converted into prodcuts.

One of the product should be removed from the reaction mixture.

During the formation of ionic bond heat is.

Choose an answer

Remains same

Absorbed

Released

Both a and b

--------------- acts a catalyst promoting the breakdown of ozone.

Choose an answer

I2

Br2

Cl2

None

Activation energy of a chemical reaction must be....... the everage kinetic energy of reacting molecules.

Choose an answer

Equal to

Grether than

Lower than

None of these

More Classes

Other Links

Chemistry 9th Class English Medium 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