2. Questions Bank
  3. 7th Class
  4. Science
  5. Related to Competitive Exam

7th Class Science Related to Competitive Exam Question Bank Self Test-5

  • question_answer
    In a chemical equation, number of atom is written in front of the symbol of the substance. Which one of the following represents the number of molecule of the substance?

    A)  Valance electrons

    B)  Atomic number

    C)  Atomic weight

    D)  Coefficient

    E)  None of these

    Correct Answer: D

    Solution :


You need to login to perform this action.
You will be redirected in 3 sec spinner