Observe the diagram of the catalytic converter and answer the questions which follow:
(a) Name any two metals used as catalyst in the catalytic converter.
(b) Name the gases that are released after passing the exhaust hydrocarbons through the catalytic converter.
(c) Name the other poisonous gas which is missing (?) in the exhaust pollutant of an automobile in the above diagram?

Explanation

Platinum-pallidium Rhodium
`CO_(2), H_(2)O` and `CO` [any 2]
Nitric oxide