What is Lindlar's catalyst?

What happens when a mixture of acetylene and hydrogen is passed over heated Lindlar's catalyst?

a) What is the role of catalyst in a reversible reaction? b) is it beneficial to add a catalyst in a system which has already attained equlibrium? Explain the answer. c) Which is the catalyst used in 'Haber process'?

What is a catalyst?

What are catalysts ?

What is the role of a catalyst In a catalysed reaction ?

What are the catalyst used in the preparation of LDP and HDP from ethene

A compound of vanadium pentoxide (V_2O_5) is used as catalyst: What is the oxidation state of vanadium in this compound?