Q3.137CP - Chemistry: Molecular Nature Of Matter And Change

Question

Elements X (green) and Y (purple) react according to the following equation: ${\mathbf{X}}_{\mathbf{2}}+\text{ 3}{\mathbf{Y}}_{\mathbf{2}}\to 2{\mathbf{XY}}_{\mathbf{3}}$. Which molecular scene represents the product of the reaction?

Step-by-Step Solution

Answer

The molecular scene “C” represents the product of the reaction.

Step 1: Identification of correct representation of chemical equation:

In the molecular scene, “C” molecules with the correct number of X atoms and Y atoms are represented as formula XY_3. One atom of X is attached tothree atoms of “Y” represented by the formula. Moreover, it also depicted those 4 atoms of X and 12 atoms of Y which are according to the stoichiometric equation.

Step 2: Writing the balanced chemical equation

If we multiply the equation with a suitable integer, we get 4 moles of XY₃ as represented in “C”.

$2{\mathbf{X}}_{\mathbf{2}}+\text{ 6}{\mathbf{Y}}_{\mathbf{2}}\to 4{\mathbf{XY}}_{\mathbf{3}}$

Result:

Option ‘C’ is the correct representation of the product of the chemical equation.