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Question

H2(g)+V2O5(s)V2O3(s)+H2O(l)
Let the coefficients for the given reaction be as follows:
wH2(g)+xV2O5(s)yV2O3(s)+zH2O(l)
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
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B
w = z, x = 2y, 5x = 3y + z
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C
w = 2z, x = y, 5x = 3y + z
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D
2w = 2z, 2x = 2z, 2y = z
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Solution

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.

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