NDA2015General AbilityGeneral ScienceActual
The following 8 (Eight) items consist of two statements, Statement I and Statement II. You are to examine these two statements carefully and select the answers to these items using the code given below : Statement I : Oxygen gas is easily produced at a faster rate by heating a mixture of potassium chlorate and manganese dioxide than heating potassium chlorate alone. Statement II : Manganese dioxide acts as a negative
Options
- ABoth the statements are individually true and Statement II is the correct explanation of Statement I
- BBoth the statements are individually true but Statement II is not the correct explanation of Statement I
- CStatement I is true but Statement II is false
- DStatement I is true but Statement II is true
Correct answer
C. Statement I is true but Statement II is false
Step-by-step solution
Heating a mixture of potassium chlorate and manganese dioxide produces oxygen gas and manganese dioxide acts as a positive catalyst.