Tue. Jul 27th, 2021

Chemistry Quiz 5

1. The National Chemical Laboratory is situated in

2. The number of waves made by an electron moving in an orbit having maximum magnetic quantum number is +3

3. The isomerism which exists between CH3CHCI2 and CH2CI. CH2CI is

4. The hottest part of the gas flame is known as

5. The organic reaction represented by equation CH3 - CH = O + H2NOH gives CH3 - CH - NH + H2O is an example of

6. The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in

7. The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind?

8. The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is

9. The number of electrons presents in H+ is

10. The most important ore of aluminium is