Which of these statements is TRUE about carbon (IV) oxide?
- it supports combustion
- It is strongly acidic in water
-
It is very soluble in water
- It supports the buring of magnesium to produce magnesium oxide
The correct answer is: C
Explanation
Carbon(iv)oxide does not burn, nor support the combustion of most substance .
The intense heat produced by burning magnesium,
However, decomposes Carbon(iv)oxide to release oxygen for the further oxidation of magnesium.
Carbon(iv)oxide dissolves in water to form trioxocarbonate(iv) acid ( soda water).