9th Class Chemistry Chapter Wise Online MCQ Test With Answers PDF English Medium

Chemistry 9th Class English Medium Online Test

Sr. #	Questions	Answers Choice
1	--------------- acts a catalyst promoting the breakdown of ozone.	I2 Br2 Cl2 None
2	Aerobic respiration releases........energy than anaerobic respiration.	Equal Less More None of these
3	Which is released in anacrobic respiration.	Stearic acid Citric acid Lactic acid Amino Acid
4	-------------acts are reserve energy sources.	Enzymes Vitamins Proteins Lipids
5	Which is not produced in an aerobic respiration.	Carbon dioxide Lactic acid Water Energy
6	--------------- of the energy used by traditional electric bulb is wasted in producing heat.	60% 50% 70% 90%
7	Washing clothes at 140 ^oF uses almost the energy as at 140 ^oF wash	Half Thrice Twice None of the above
8	No reaction occurs if the energy of reacting particles.......activation energy.	Lower than Greather than Nearest to Equal to
9	Activation energy of a chemical reaction must be....... the everage kinetic energy of reacting molecules.	Equal to Grether than Lower than None of these
10	Formation of NO is	Exothrmic Endothermic No Heat Change None of these
11	Bond dissociation for O2 is	505 kJ/mol 705 kJ/mol 605 kJ/mol 498 kJ/mol
12	Bond dissocialation for H2 is	435 kJ/mol 440 kJ/mol 430 kJ/mol 445 kJ/mol