Question No : 1
Law of octaves was given by
Question No : 2
Which of the following did not find a place in Mendeleef's periodic table?
Question No : 3
In a Lother Meyer curve sodium occurs at
Question No : 4
In the Mendeleef's periodic table properties of the elements are the periodic function of their
Question No : 5
Modem Periodic Law was given by
Question No : 6
Which of the following is an inert gas?
Question No : 7
The element with no definite place in the periodic table is