Which of the items in column I matches the items in column II?

Matrix:

	Column I		Column II
a)	Proust	i)	Law of constant proportions
b)	Hydrogen	ii)	Smallest atom
c)	12u	iii)	John Dalton
d)	Lavoisier	iv)	Law of conservation of mass
e)	Ferrum	v)	Carbon-12
f)	Indivisible atom	vi)	Latin name

Joseph Proust gave the law of constant proportions. The law of constant proportion states that a given chemical compound always contains its component elements in a fixed ratio and does not depend on its surface and method of preparation. The smallest atom is the hydrogen atom. 

The element hydrogen has the smallest atomic mass which has a proton and an electron. The atomic mass of carbon-12 is 12u. The law of conservation of mass was given by Lavoisier. 

It states that mass can neither be created nor destroyed in chemical reactions. The Latin name of iron is Ferrum with the symbol Fe. John Dalton’s theory said that an atom was an indivisible particle. 

Hence, the correct matches are a,b and d.