Among the following reactions, which ones might be elementary? explain your answer. (a) a+b a c +d+e (b) 2 a+b +0 (c) a+b=c+d (d) a+b=c+d (e) a + 3b

Answer(d) unstable compounds that convert to acetals in the presence of alcohol and an acid; (b) semiacetals produced by alcohol subtraction from ketone;

Answer:             1.0  × 10⁻⁵ msolution:                     as we know ph is given as,                                    ph  = -log [h⁺]and,                                    [h⁺]  =  10^-ph    (1)putting value of ph in eq. 1,                                    [h⁺]  =  10⁻⁵                                    [h⁺]  =  1.0  × 10⁻⁵ m

Abnormal cell division causes cancer.hope that !