Correct Answer: Option A

Explanation

                      2C\(_2\)H\(_2\)(g) + 5O\(_2\)(g) → 4CO\(_2\)(g) + 2H\(_2\)O(g)

                        2 moles                :            4 moles

    n = \(\frac{mass}{molar mass}\) = \(\frac{78}{26}\)

   If                  3 moles                :              6 moles 

                                                            n = \(\frac{m}{M}\)

                                                            m =  n x M 

                                                             m = 6 x 44

                                                             m = 264g

There is an explanation video available below.

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