JAMB - Chemistry (2024 - No. 89)
The main constituent of water-glass is
calcium trioxosilicate(IV)
calcium trioxosulphate(IV)
sodium trioxosulphate(IV)
sodium trioxosilicate(IV)
Vysvětlení
Water glass, also known as sodium silicate or alkali silicate glass, is a glassy solid made up of sodium oxide (Na\(_2\)O) and silica (silicon dioxide, SiO\(_2\)).