EASY

Earn 100

Select whether the following statement is true or false:

The chemical formula of the anion present in sodium bicarbonate is ${HCO}_{3}^{-}$ .

50% studentsanswered this correctly

Important Questions on Atoms, Molecules and Chemical Reactions

HARD

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

The formulae of an oxide of an element

M

MO

. The formulae of its phosphate is

MEDIUM

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

The element ‘X’ has an electronic configuration

2, 8, 3 .

Element ‘Y’ has an electronic configuration

2, 8 7

. The chemical formula of the compound formed when they react is

MEDIUM

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

An element X with atomic number

13

combines with another element Y of atomic number

17

. The formula of the compound formed and the nature of the bond will be:

MEDIUM

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

An element ‘P’ which belongs to

13 th

group of the periodic table and another element ‘Q’ belongs to

16 th

group. The formula of the compound formed if they react with each other is:

EASY

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

A solution of a substance 'X' is used for whitewashing.

(a) Name the substance 'X' and write its formula.

(b) Write the reaction of the substance with water.

EASY

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

Write the valencies and chemical formula of Sodium nitrate.

EASY

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

Write the chemical name of

KClO

EASY

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

The formula of sodium nitride is

EASY

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

The formula of aluminium sulphate is:

EASY

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

What is the chemical formula for the compound hydrogen chloride?

EASY

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

{CaCl}_{2}

is :

EASY

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

The chemical name of

{Fe}_{2} ({SO}_{4})_{3}

is:

EASY

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

Write the valencies and chemical formula of Barium chloride.

EASY

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

The formula of aluminium sulphate is

{Al}_{2} ({SO}_{4})_{3}

. Write the formula of aluminium chloride and aluminium nitride

HARD

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

Write the formulae for the following and calculate the molecular mass for each one of them.
(A) Caustic potash
(B) Baking powder
(C) Limestone
(D) Caustic soda
(E) Ethanol
(F) Common salt

EASY

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

Formula of a compound formed by

{Fe}^{3 +}

and

{SO}_{4}^{2 -}

is:

EASY

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

The formula of calcium hydrogen carbonate is:

HARD

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

The formula of a compound formed by

{Ca}^{2 +}

and

O^{2 -}

is:

EASY

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

The formula of iron (III) chloride is:

EASY

Science>Chemistry>Atoms, Molecules and Chemical Reactions>Chemical formula

The chemical name of

Mg ({HCO}_{3})_{2}

Select whether the following statement is true or false: The chemical formula of the anion present in sodium bicarbonate is HCO3- .

Important Questions on Atoms, Molecules and Chemical Reactions

Learn and Prepare for any exam you want !

Select whether the following statement is true or false:

The chemical formula of the anion present in sodium bicarbonate is ${HCO}_{3}^{-}$ .