Chemical Formula of Ionic Compounds

Q.

The chemical formula of common salt is

1. nacl

2. NaCl

3. NACL

4. NaCL

Q.

What is the molecular formula for chalk?

1. $CaC{l}_2$

2. $Ca(HC{O}_3{)}_2$

3. $CaC{O}_3$

4. $N{a}_{2}C{O}_3$

Q.

Write the chemical name and formula of common salt

Q.

What is the information given by the formula of silver chloride, Agcl?

Q.

Formula of a compound having its constituent as X and Y is $X_2{Y}_3$. If the element forms a chloride then what will be the formula of that compound?

1. X₂Cl

2. XCl₂

3. X₃Cl

4. XCl₃

Q.

What is the chemical formula for marble?

Q.

What is the valency of oxide?

Q.

Write the symbol and valency of bisulphite.

Q.

If the formula of metal nitride is MN, the formula of the metal sulphate is?

1. M(SO₄)₂

2. MSO₄

3. M₃(SO₄)₂

4. M₂(SO₄)₃

Q.

To write the chemical formulae, one must know the valency of the element. State whether the statement is True/False.

1. True

2. False

Q. Give the names of the elements and number of atoms of those elements, present in the following compounds.
Quick lime

Q.

Which of the following is the correct interpretation of the given symbol?

$2H_2$

1. 2 molecules of hydrogen

2. 4 hydrogen molecules

3. 2 atoms of hydrogen

4. 2 atoms of a hydrogen molecule

Q.

Differentiate between ionic compounds and molecular compounds.

Q.

Chemical formula of a compound is determined on the basis of ___ of the constituent atoms.

1. Charge

2. Valency

3. Mass

4. Atomic number

Q.

Which of the following is the correct formula of aluminium oxide?

1. $A{l}_{2}O$

2. $Al{}_{3}O{}_2$

3. $Al{O}_2$

4. $A{l}_2{O}_3$

Q.

Which of the following characteristics can't be determined by Molecular formula?

1. The molecular mass of the compound

2. The molecular structure of the compound

3. The elements present in the compound

4. The composition of a molecule of the compound

Q.

Which of the following is the correct formula of magnesium chloride?

1. $MgCl$

2. $MgC{l}_2$

3. $M{g}_{3}C{l}_2$

4. $M{g}_{2}C{l}_3$

Q.

Give an example other than a table salt

Q.

In a chemical formulae, the valency of anion is 4. Find out the valency of cation.

1. Less than 4

2. More than 4

3. Equal to 4

4. Cannot be determined

Q.

The chemical formula of Calcium Hydroxide is $CaO{H}_2$.

1. True

2. False

Q.

Fill in the blanks:
1. Elements present in the molecules of water are_________ and________.

Q.

Which of the following is the correct formula of hydrogen chloride?

1. $H_{2}C{l}_2$

2. $HC{l}_2$

3. $H_{2}Cl$

4. $HCl$

Q.

Write the formula and chemical name of slaked lime.

Q.

Is water an element or a compound?

Q. The valancies of the constituent elements' chemical formula are same on every formula. But variable valancies are different for example if iron and sulpher have different valency how will I understand which valency I should use for finding out the formula

Q.

The ionic compound containing ${Ca}^{2+}$ and $(OH{)}^{-}$ would have the formula

1. $Ca(OH{)}_2$

2. $C{a}_{2}OH$

3. $2CaOH$

4. $CaOH$

Q. Two elements X and Y(atomic mass of X=75, Y=16) combine to give a compound having 76%of X.The formula of the compound is

Q. Write the formula and calculate the molar mass of magnesium phosphate

Q.

If the formula of a metal nitride is MN, the formula of the metal sulphate is?

1. M(SO₄)₂

2. MSO₄

3. M₂(SO₄)₃

4. M₃(SO₄)₂

Q. How to found colour of coordinate compound