Which equation represents a reaction

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Which equation represents a reaction that provides the heat of formation of CHCl(l)?

a)   C (s)  +  H (g)  +  Cl3 (g)    à        CHCl (l)

b)   2 C (s)   +   3Cl2 (g)  + 2H(g)         à        2 CHCl(l)            

c)   2C (s)   + H2 (g)  +  3 Cl (g)            à        2 CHCl(l)

d)   H (g)  +  3 Cl (g)  +  C (s)   à        CHCl3  (l)

e)   C (s)   +   3/2 Cl2 (g)  +  ½H(g)     à        CHCl(l) 

Reference no: EM13995401

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