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...