| 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 reactions. Which of the following concerning the species X, Y and P are correct? (NCERT Exemplar) |
| I. P is a compound |
| II. X and Y are compounds |
| III. X and Y are elements |
| IV. P has a fixed composition |
A) I and III
B) I, II and IV
C) II, III and IV
D) I, III and IV
Correct Answer: D
Solution :
[d] In this reaction, X and Y cannot be broken down into simpler substances by chemical reactions, therefore, Z and Y are elements. A compound is a substance made up of two or more elements chemically combined in a fixed proportion by mass, therefore, P is a compound, having a fixed composition.
You need to login to perform this action.
You will be redirected in
3 sec
