Question

$H_2\left(g\right)+V_2{O}_5\left(s\right)\to V_2{O}_3\left(s\right)+H_{2}O\left(l\right)$
Let the coefficients for the given reaction be as follows:
$w{H}_2\left(g\right)+x{V}_2{O}_5\left(s\right)\to y{V}_2{O}_3\left(s\right)+z{H}_{2}O\left(l\right)$
What will be the values of w, x, y and z so that the reaction is balanced?

• A. w = z, x = y, 5x = 3y + z
• B. w = z, x = 2y, 5x = 3y + z
• C. w = 2z, x = y, 5x = 3y + z
• D. 2w = 2z, 2x = 2z, 2y = z

Answer 1

The correct option is A w = z, x = y, 5x = 3y + z

Equating the number of atoms for each element on the two sides of the equation, we get:
w = z, x = y and 5x = 3y + z.
Where, w and z = number of H atoms, x and y = number of V atoms and number of O atoms are expressed as 5x = 3y + z.