There is no official phobia name for the fear of vipers. However the official phobia name for the fear of snakes is ophidiophobia.
There is no official phobia name for fear of the alphabet.
The fear of buttons is called Koumpounophobia.
Ice cream phobia, or the fear of ice cream, is yet to be given an official name. However, there is such a thing as cryophobia, or a fear of cold.
The phobia name for the fear of monkeys is Cynophobia.
The phobia name for the fear of the unknown is called Xenophobia.
Strangely, yes, there is an irrational fear of being too happy. The name of this phobia is Cherophobia.Generally people with the phobia fear being too happy because they are worried something tragic will happen as a result of their over-happiness.
There is no official name for this fear, although it may be known unofficially as separation phobia or brokenhearteditis. It can also be associated with eremophobia or eremiphobia-- the fear of loneliness or of being by oneself.
There is no name for fear of olives, but lachanophobia is the fear of vegetables.
Mnemophobia is the name of the phobia related to the fear of memories
Carnophobia is the name of the phobia related to the fear of meat
Hylephobia is the name of the phobia related to the fear of materialism
Gamophobia is the name of the phobia related to the fear of marriage