Question

1. Define what catalysis is. 2. Outline the mechanism for the dehydration of 2-methylcyclohexanol. 3. If 0.138 g of cyclohexene (CH2o) was obtained from 0.240 g of cyclohexanol (CH320), what is the percentage yield of cyclohexene? 4. Complete the following reactions by drawing the structures of the organic products.

Answer 1

S TU alyst may be defined as, a substance which by its mere e changes the rate of a chemical reaction without itself Indergoing any permanent chemical change. Thus a catalyst in recovered in a chemically unchanged state at the end of saction. A catalyst may be a single substance or a mixture of substances or a micro particle (atom, ion or molecule). Transition metals and their compounds are the most efficient catalysts. The action of a catalyst in changing the rate of a chemical reaction is called catalysis. Reactants on which catalysts operate are called substrates.

* सीसी 1 1,2-He shift -@ le 3o Carbocation (stable) _ म et for many of the + H90 H 3) C6H12O Molecular 100 g/mol CHIO 82 g/mol roman ei 100 g/mol of CH420 gives_829)mol of Ghior then 0.240 g of G H 120 giver om The man dr SH o formed= 0.240 g x 82 g/mol __ 1003)mo] ___0-19-68%_______

% yield of G H 10 = mass of Chio formed x100 Total mass of Gh10 = 0.138 g 0.19689_X100 70.12%