The general formula of sodium hydroxide is...
a) NaOH
b) KOH
c) CaOH
d) CaO
………… react with water forming potassium hydroxide and hydrogen gas.
a) calcium
b) potassium
c) sodium
d) magnesium
The chemical formula of potassium hydroxide is…………
a) KOH
b) NaOH
c) CaOH
d) CaO
Calcium is
…………….
a) alkaline earth metal
b) alkali metal
c) non-metal
d)
noble gas
