Which rule is used for writing the name of an ionic base?
the chemical name begins with "hydro."
the chemical name ends with "hydroxide."
the "ide" ending is changed to "ic.
the polyatomic "ate" ending is changed to "ic."

The chemical name of an ionic base ends with "hydroxide."

Explanation:

Bases are defined as the chemical species which donates hydroxide ions when dissolved in water.

Ionic base is formed by the combination of metal with hydroxide ion. The name of any ionic base will end with the word 'hydroxide'

For Example: NaOH is formed by the combination of sodium ion and hydroxide ion and is named as sodium hydroxide

Hence, the chemical name of an ionic base ends with "hydroxide."

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current