Which of the following chemical reaction is true?
(a) C_2 H_2+ 2Cl_2 \, ^{\underrightarrow{BaCl_2}}\, C_2 H_2 Cl_2
(b) C_2 H_2+ 2Cl_2 \, ^{\underrightarrow{BaCl_2}}\, C_2 H_2 Cl_4
(c) C_2 H_2 Cl_4 \, ^{\underrightarrow{BaCl_2}}\, C_2 HCl_3+ HCl
(d) C_2 H_2 Cl_4 \, ^{\underrightarrow{FeCl_3}}\, C_2 HCl_3+ HCl
I have been asked this question during a job interview.
Enquiry is from C1 Compounds in portion Synthetic Organic Chemical Industries of Chemical Technology