How many grams of bromine will be required to completely react with 10 g of…

How many grams of bromine will be required to completely react with 10 g of propyne?
(C = 12, H = 1, Br = 80)
  • A.
    20 g
  • B.
    40 g
  • C.
    60 g
  • D.
    80 g
Correct Answer: Option D
Explanation

C3H4 + 2Br2 – C3Br4 + 2H2
(36 + 4) (4 X 80)
40 g of C3H4 reacts with 320 g of Br
10 ” ” will react with
(10)/(40) x (320) /(1) = 80g

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