Answer:
d) 12
Explanation:
Given data:
Moles of CHâ‚„ react = 6 mole
Moles of water formed = ?
Solution:
CH₄ + 2O₂    →  CO₂ + 2H₂O
Now we will compare the moles of CHâ‚„ with water.
         CH₄      :      H₂O
          1        :       2
         6        :      2/1×6 = 12 moles
Thus from 6 moles of CHâ‚„ 12 moles of water produced.