The molecular formula
of oxide of silicon​

true

Explanation:

The Molecular formula of oxide of silicon is SiO2

Explanation:

SiO2 is composed of oxide and silicon I hope this is very helpful, pardon me if this is incorrect

answer; talc and gypsum;

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.