Ophidiophobia.
The phobia related to the fear of snakes is called ophidiophobiaOphidiophobia - Fear of snakes.
Ophidiophobia
cameraphobia
Apoctoliptophobia it the technical term
The technical term is Ovoviviparity
Although the word you are looking for is arachnophobia, it only applies to the extremely intense fear of spiders. Many people are afraid of them, but only the people who have an incapcitating fear of spiders are arachnophobic.
Autophobia or Monophobia.
Gerascophobia
sciophobia or sciaphobia
There has not yet been a technical term documented for such a fear.
Didaskaleinophobia or Scolionophobia,
The fear of going to school is called "Didaskaleinophobia".