What types of chemical reactions are the following?

Question

Column A
1. AI + GaP - Ga + AIP
2. 2 Mg + O2 - 2 MgO
3. MgO + BeSe - BeO + MgSe
4. CH4 + 2O2 - CO2 + 2H2O
5. 2 NaCI - Na + CI2

Column B
A) Single Replacement
B) Synthesis
C) Combustion
D) Decomposition
E) Double Replacement

Answer 1

Here are the types of chemical reactions for each reaction in Column A, matched with the corresponding type from Column B:

1. AI + GaP → Ga + AlP

   • Type: A) Single Replacement (Al is replacing Ga in GaP)

2. 2 Mg + O2 → 2 MgO

   • Type: B) Synthesis (Magnesium and oxygen combine to form magnesium oxide)

3. MgO + BeSe → BeO + MgSe

   • Type: E) Double Replacement (The cations and anions switch partners)

4. CH4 + 2O2 → CO2 + 2H2O

   • Type: C) Combustion (Methane is combusted in the presence of oxygen)

5. 2 NaCl → Na + Cl2

   • Type: D) Decomposition (Sodium chloride breaks down into sodium and chlorine gas)

So, the final matching is as follows: 1 - A
2 - B
3 - E
4 - C
5 - D