Question

9:46 Home Saturday 1:12 PM Edit LIVE in which con both the car and the product a) c on reaction b ythesis reaction combination c) ng-replacement con c ement double placement reaction change reaction e decomposition reaction a nd bij a) and hand) a) c) and d nande) and and and ande) band and Incorrect response

Answer 1

The answer is "f" since there is no correct response.

The only type of reaction in which both reactants and products are always compounds is "double replacement reaction". In all other reactions, along with compounds, elements or molecules can be involved as reactants or products.

Examples:

1. Combustion reaction:

CH₄ + O₂ ------------------- CO₂ + H₂O

Here O₂ is molecule.

2. Combination reactions:

H₂ + Cl₂ --------------------- 2HCl

Here, H₂ and Cl₂ are molecules.

3. Single replacement reaction:

Mg + CuSO₄ ---------------------Cu + MgSO₄

Here, Mg and Cu are elements.

4. Decomposition reaction:

2 Al₂O₃------------------------------ 4 Al+ 3O2

Here element Al and molecule O₂ are involved.

5. Double replacement reaction

Here alone both reactants and products are always compounds. The typical double replacement reaction can be written as

AB + CD------------------------ AD + BC

KBr + AgNO₃  --------------------------- KNO₃ + AgBr