Which of the following is not a chemical reaction ?

Related Mcqs:

1. In a fission nuclear reaction , a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear reaction is called ?

   A. Chemical Reaction
   B. Nuclear reaction
   C. Fission nuclear reaction
   D. Fusion nuclear reaction
   E. None of these

2. Oxidation is a chemical reaction involving the __________?

   A. Gain of Electrons
   B. Loss of Electrons
   C. Gain of Protons
   D. Loss of Protons

3. Laughing gas has chemical composition of following two elements ?

   A. Nitrogen + Hydrogen
   B. Nitrogen + Carbon
   C. Nitrogen + Oxygen
   D. Oxygen + Carbon
   E. None of these

4. Which one of the following represents a chemical change_________?

   A. Sublimation of iodine
   B. Heating a platinum wire in a Bunsen flame
   C. Heating of mercuric oxide powder
   D. Evaporation of alcohol

   Submitted by: Aamir Hussain Laghari

5. The chemical name of Laughing gas is___________?

   A. Nitric oxide
   B. Nitrogen dioxide
   C. Nitrogen pentoxide
   D. Nitrous oxide

   Submitted by: Iram Saleem

6. Chemical Name of Dry Ice?

   A. Solid Carbon Dioxide
   B. Calcium Carbon
   C. A&B
   D. Sodium Oxide

   Submitted by: Farman Aijaz

7. What is the chemical name of vitamin E?

   A. Calciferol
   B. Tocopherol
   C. Riboflavin
   D. Phylloquinone

   Submitted by: Aamir Hussain Laghari

8. What is the Chemical formula of Zinc Hydroxide _________ ?

   A. Zn(OH)2
   B. ZNO2
   C. Zn2(OH)3
   D. ZnOH

   Submitted by: Rashid Mehmood

9. Chemical formula for Water is _______ ?

   A. NaAlO2
   B. H2O
   C. Al2O3
   D. CaSiO3

   Submitted by: Rashid Mehmood

10. What is chemical symbol for Tungsten?

    A. Z
    B. T
    C. Tn
    D. W

    Submitted by: Munwar Ali Sohu