Question

Classify the following reaction according to the five basic reaction types:

Cd(s)+H2SO4(aq)→CdSO4(aq)+H2(g)


a. single replacement
b. combustion
c. double replacement
d. combination(Synthesis)

Answer 1

The reaction Cd(s) + H2SO4(aq) → CdSO4(aq) + H2(g) is a single replacement reaction, where cadmium replaces hydrogen in sulfuric acid to form cadmium sulfate and hydrogen gas. So the correct option is a.

Step-by-step explanation:

The reaction given in the question is:

Cd(s) + H2SO4(aq) → CdSO4(aq) + H2(g)

This reaction can be classified as a single replacement reaction. In a single replacement reaction, one element replaces another element in a compound. Here, cadmium (Cd) replaces hydrogen in sulfuric acid (H2SO4), resulting in cadmium sulfate (CdSO4) and hydrogen gas (H2). The clues for this classification include the exchange of one metal with hydrogen in an acid, which is a common pattern in single replacement reactions.

Answer 2

a. single replacement

Step-by-step explanation:

Chemical equation:

Cd + H₂SO₄ → CdSO₄ + H₂

In given reaction Cd replace the hydrogen and form cadmium sulfate and hydrogen gas.

Single replacement:

It is the reaction in which one elements replace the other element in compound.

AB + C → AC + B

Other options are incorrect because,

Combustion:

In combustion reaction substances are burn in the presence of oxygen and form carbon dioxide and water.

Synthesis reaction:

It is the reaction in which two or more simple substance react to give one or more complex product.

A + B → AB

Double replacement:

It is the reaction in which two compound exchange their ions and form new compounds.

AB + CD → AC +BD