Final answer:
Lime oxide is not added to automobile headlights and heat-resistant glass like Pyrex. It is primarily used in soda-lime-silica glass for window glass and tableware.
Step-by-step explanation:
The statement is false. While lime oxide (CaO) is used in the manufacture of glass, it is primarily added to soda-lime-silica glass, which is commonly used for window glass and tableware. Lime oxide helps in lowering the melting temperature of the glass and improves its workability.