Two chemical species X and Y combine together to form a product P which contains both X and Y X + Y → 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?
  1. P is a compound
  2. X and Y are compounds
  3. X and Y are elements
  4. P has a fixed composition

  5. (a) (i), (ii) and (iii),
    (b) (i), (ii) and (iv)
    (c) (ii), (iii) and (iv)
    (d) (i), (iii) and (iv)

AcademicChemistryNCERTClass 9

Correct Answer: (d) (i), (iii) and (iv)

Explanation: When two elements combine in a chemical reaction to give a product, the product is a compound. The composition of a compound has a fixed ratio and its properties are different from the elements participating in the reaction.

Updated on 10-Oct-2022 13:29:32