When jeremy found out he made it to the second round of interviews for a job he wanted, he strongly believed it was due to his qualifications and talent. when he found out he was not chosen for the job, he assumed it was because the interviewers simply could not see what a great candidate they had in him. this exemplifies the

This exemplifies the "self serving bias".

A self-serving bias is any intellectual or perceptual process that is misshaped by the need to keep up and improve confidence, or the propensity to see oneself out of an excessively great manner. It is the conviction that people have a tendency to attribute accomplishment to their own capacities and endeavors, yet credit inability to outer factors. 

Alloy of metals is the answer

Clean air provides nitrogen