Ionic Compounds Chemical Formula

Q.

What is mole percent? Give an example

Q.

Which of the following is a triatomic molecule?

1. Oxygen

2. Sulfur

3. Nitrogen

4. Ozone

Q. A molecule is ___________when it contains only one atom.

1. Monoatomic
2. Diatomic
3. Triatomic
4. Polyatomic

Q.

How do you calculate the percent composition of water?

Q.

Write the chemical formula of the compound sodium bisulphate in a step-by-step manner.

Q. The chemical formula of Calcium Hydroxide is $Ca(OH{)}_2$.

1. True
2. False

Q.

What is a polyatomic molecule?

Q. Sulphide, sulphate and sulphite are ions.

1. monovalent
2. divalent
3. trivalent

Q. The chemical formula of Potassium Hydroxide is $K(OH{)}_2$.

1. True
2. False

Q.

Write the formula of the sulphate of element with atomic number 13

Q.

What is the chemical formula of Aluminium Chloride?

1. $AlC{l}_3$

2. $AlC{l}_2$

3. $A{l}_{2}C{l}_3$

4. $AlCl$

Q.

The formula for Magnesium carbonate is:

1. NaCO₂

2. na₂CO₃

3. Na₂CO₃

4. Na₃CO₂

Q.

Explain different types of molecules with examples.

Q.

The molecular formula of calcium phosphate is _______.

Q.

Write the chemical formula of the following compound:

Potassium oxalate

Q.

What is the chemical name of the compound $FeC{l}_3$?

1. Iron(II) Chloride

2. Ferrous Chloride

3. Iron (III) Chloride

4. Aluminium Chloride

Q.

Derive a formula of a chemical compound containing only sodium and chlorine.

1. 

2. 

3. 

4. 

Q.

If Iron ($Fe$) is monoatomic then which of the following is/are correct?

1. Radical and Cation.

2. Anion and Cation.

3. Cation and Anion.

4. Anion and Radical.

Q.

What do you understand by the term “triatomic molecules”? Give an example of the same.

Q.

What is the charge of Mg in $Mg{Cl}_2$ ?

1. 4+

2. 1+

3. 3+

4. 2+

Q.

Natrium is the latin name of ____________.

1. Nitrogen

2. Neon

3. Sodium

4. Lead

Q.

The atomicity of O is 2.

1. It has one electron in its valance shell.

2. It has one atom each in their molecules

Q.

What would be atomicity of $N{H}_4^{+}$ and $C{l}^{-}$ in ammonium chloride?

1. Element, Molecule and Molecule.

2. Molecule, Cation and Anion.

3. Ion, Cation and Anion.

4. Molecule, Anion And Cation.

Q.

Derive the chemical formula of magnesium carbonate.

Q.

What is the difference between symbol and formula?

Q.

The chemical symbol for bromine is _____ .

Q. Which of the following molecule(s) is/are not polyatomic?​
(I) $H_2{\mathrm{SO}}_4$ (II) ${\mathrm{Cl}}_2$ (III) ${\mathrm{KNO}}_3$

1. Both I and III
2. Both II and III
3. Only II
4. Only I

Q.

Give one example of a monovalent polyoatomic cation.

Q.

In a chemical formula of a diatomic ionic compound, the charge on the anion is -3. Find out the charge on the cation.

1. Less than 4

2. Equal to 4

3. More than 4

4. Cannot be determined

Q.

Write the chemical formula of the following compound:

Ferric phosphate.