1. The valence orbital configuration of an element with atomic number 23 is

2. If the four tubes of a car are filled to the same pressure with N2, O2, H₂ and
helium separately, then which one will be filled first?

3. Physical properties of alkanes increase with increase of all physical constants
except

4. Kolb's method has limited synthetic applications due to

5. The relative abundance of the ion with a definite m/e value is measured by?

6. What is the packet of energy called?

7. The reaction in which ketone is reduced to the alkane is called

8. Incomplete oxidation of alkanes yields

9. The unreactivity of alkanes is based upon

10. The temperature below which a gas does not exist is called its