In the acid-catalysed hydration of propylene, 7moles of propylene and 13moles of water were fed to reactor, and the reactor effluent contained 0.176 mol of isopropyl alcohol, 0.016 mol of n-propyl alcohol,11.81 mol of water and 4.808 moles of propylene

(a) percent yield of isopropyl based on propylene charged

(b) percent selectivity for isopropyl alcohol production

(c)percent selectivity for n-propyl alcohol production.