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 : Colour of nitrogen dioxide changes to colourless at low temperature. Statement II : At low temperature Nitrogen tetroxide ( N ₂ O ₄ ) is formed which is colourless.
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
A. Both the statements are individually true and Statement II is the correct explanation of Statement I
Step-by-step solution
NO ₂ exists in equilibrium with the colourless gas dinitrogen tetroxide ( N ₂ O ₄ ) . At higher temperature NO ₂ is favoured while at low temperature N ₂ O ₄ predominates.