J.R. S. answered 04/22/23
Ph.D. University Professor with 10+ years Tutoring Experience
LixCy + H2O ==> LiOH + C2H2 .. unbalanced
Li2C2 + 2H2O ==> 2LiOH + C2H2 .. balanced equation
Simplest formula (empirical formula) for lithium carbide = LiC (option A)