The tobacco industry is one of the oldest industries of India; belongs to 

Which of the following is considered as 'hot spot biodiversity' in India

The sequence of one systole followed by one disatole of the heart chambers is termed as 

H.I.V. has ------------ as genetic material.

Moss cotton is

Find out the incorrect statement(s) :

1. All lanthanides are non-radioactive
2. Some actinides form MO2+, MO22+ oxocations
3. The compounds of lanthanides are more basic than that of actinide compounds
4. 5f elements show variable oxidation states like +2,+3,+4,+5,+6 and +7