Q.1.
Which are the three magnetic elements?
Q.2.
Which elements are in CoCO ?
Q.3.
What is the correct formula for H-H?
Q.4.
The smallest part of an element that retains the identity (and the chemical properties) of that element is ...
Q.5.
What is the correct symbol for Iron?
Q.6.
How many atoms of sulfur are there in CuSO ?
Q.7.
Most of the elements in the periodic table are.....
Q.8.
Which elements are in SO ?
Q.9.
An element has.....
Q.10.
Which of the following metals is a liquid at room temperature?