Answer : The correct option is, (1) 2.5 moles
Solution : given,
Moles of \(C_2H_2\) = 1 mole
The given balanced reaction is,
\(2C_2H_2(g)+5O_2(g)\rightarrow 4CO_2(g)+2H_2O(g)\)
From the balanced reaction, we conclude that
As, 2 moles of \(C_2H_2\) react with 5 moles of \(O_2\)
So, 1 mole of \(C_2H_2\) react with \(\frac{5}{2}=2.5\) moles of \(O_2\)
Therefore, the number of moles of oxygen required is, 2.5 moles.
