CHEMISTRY

Question Title

* 1. A particle starts flying in the xy-plane with a speed of . Initial position of the particle was the origin (0, 0) of the plane. The trajectory of the particle is represented by the equation

Question Title

* 2. One mole of CO2 contains

Question Title

* 3. A 100 mL solution of 0.1 N HCl was titrated with 0.2 N NaOH solution. The titration was discontinued after adding 30 mL of NaOH solution. The remaining titration was completed by adding 0.25 N KOH solution. The volume of KOH required for completing the titration is

Question Title

* 4. The correct set of four quantum numbers for the valence electron of rubidium (Z = 37) is

Question Title

* 5. Which of the following transitions involves maximum amount of energy?

Question Title

* 6. Which of the following is correct?

Question Title

* 7. When  is formed from N2, bond order ……….. and when O2+ is formed form O2 bond order ……………

Question Title

* 8. Helium is used in balloons in place of hydrogen because it is

Question Title

* 9. If HNO3 changes into N2O, the oxidation number of N is changed by

Question Title

* 10. In context with the industrial preparation of hydrogen from water as (CO + H2), which of the following is the correct statement?

T