Naming of Ionic Compounds

Q. Write the chemical formula of calcium carbonate.

Q.

Write down the names of compounds represented by the following formulae: (i)${\mathrm{Al}}_2{\left({\mathrm{SO}}_4\right)}_3$(ii)${\mathrm{CaCl}}_2$ (iii) ${\mathrm{K}}_2{\mathrm{SO}}_4$(iv) ${\mathrm{KNO}}_3$(v) ${\mathrm{CaCO}}_3$

Q.

What is the formula of Sodium Zincate?

Q.

What is meant by the term chemical formula?

Q. Difference between cl^- cl2 And 2cl

Q.

The formula of sodium hydroxide is _______ .

1. NaOH

2. Na(OH)₂

3. Na₂CO₃

4. Na₂O

Q.

What is the chemical formula of Diamine silver (I) chloride?

Q. Valency of sulphide

Q.

State the valency of plumbite.

Q. Question 2 (iii)
Write down the names of compounds represented by the following formulae:
$\left(iii\right)K_{2}S{O}_4$

Q.

What is the chemical name of ionic compound $MgC{l}_2$?

1. Magnesium Chloride

2. Chloride magnesium

3. Magnesium chlorine

4. Chlorine magnesium

Q.

What is the valency of H in HF?

1. Compound

2. Anion

3. Element

4. Cation

Q. An ion having a positive charge is called whereas the one bearing a negative charge is called .

1. cation
2. anion
3. radical
4. polyatomic ion

Q. Match the chemical formulae with the corresponding compounds.

1. Sodium chloride
2. Lithium oxide
3. Aluminium oxide
4. Hydrogen bromide

Q.

What is the name for ${\mathrm{FeCl}}_3$ using IUPAC nomenclature rules?

Q.

Write the chemical formulae and name the element present in the Potassium Hydroxide.

Q.

What information do the formulae ${\mathrm{CaCO}}_3$ give to the chemist?

Q. If compound X is $CuS{O}_4.5H_{2}O$, how many water molecules are present in one formula unit of X?

1. 5
2. 10
3. 0
4. 1

Q.

Write down the name of the compound represented by the molecular formulae $\left({\mathrm{CaCl}}_2\right)$.

Q.

While writing a chemical formula, ___ is written first followed by ___ with a suffix added to it.

1. Anion, Cation

2. Cation, Anion

3. Cation, Element

4. Anion, Element

Q. Question 2 (v)
Write down the names of compounds represented by the following formulae:
$\left(v\right)CaC{O}_3$

Q. Question 2 (iv)
Write down the names of compounds represented by the following formulae:
$\left(iv\right)KN{O}_3$

Q. How to calculate valence electrons in CO3?- (carbonate ion)??

Q.

Why do elements combine? Calculate the number of molecules of sulphur ($S_8$ ) present in 16 g of solid sulphur. [3 MARKS]

Q. Select the polyatomic ions.

1. ${{\mathrm{NO}}_3}^{-}$
2. ${\mathrm{Cl}}^{-}$
3. $H_3{O}^{+}$
4. ${\mathrm{Na}}^{+}$
5. ${\mathrm{OH}}^{-}$
6. ${{\mathrm{SO}}_4}^{2-}$
7. ${{\mathrm{NH}}_4}^{+}$
8. ${\mathrm{Cu}}^{2+}$

Q.

Which of the following represents the chemical formula of calcium carbonate?

1. CaCO₃

2. Ca₂CO₃

3. Ca(CO₃)₂

4. Ca₃CO₂

Q.

What would be the possible charge of an anion among the given options?

1. 0

2. -1

3. +1

4. +2

Q. how to find valency? what is the valency of (a) fluorine in CaF₂ (b)sulphur in SF₆ (c)phosphorus in PH₃ (d) carbon in CH₆ (e)nitrogen in the following compounds (i)N₂O₃ (ii)N₂O₅ (iii)NO₂ (iv)NO

Q.

If 'Cu' forms two mono atomic cations with oxidation number +1 and +2, then it will respectively be called as:

1. Copper halide

2. Cupric and Cuprous

3. Cuprous and cupric

4. Copper

Q.

Which among the following elements has an octet electronic configuration?

1. Na

2. Ne

3. Ca

4. Mg