How many grams of HBr would exactly be required to react with 2 g of propyne? (C =12, H=1, Br = 80)
-
A.
4. 1 g -
B.
6. 1 g -
C.
8. 1g -
D.
16.2g
Correct Answer: Option C
Explanation
2HBr + C3H4 (to) C3H6 + 2Br
164gms of HBr reacts with 40gms of propyne 2gms of propyne will react with
(frac{164}{40} times frac{2}{1}) = 8.1gms HBr