Two chemical species `X` and `Y` combine together to form a product `P` which contains both `X` and `Y`
`X + Y to P`
`X` and `Y` cannot be broken down into simpler substances by simple chemical reaction. Which of the following concerning the species `X, Y` and `P` are correct ?
(i) `P` is a compound
(ii) `X` and `Y` are compounds
(iii) `X` and `Y` are elements
(iv) `P` has a fixed composition

Options

A. (i), (ii) and (iii)
B. (i), (ii) and (iv)
C. (ii), (iii) and (iv)
D. (i), (iii) and (iv)

Answer

D