What is the atomic number of Gold?
...What is the atomic number of Gold?
79
80
81
82
Correct answer is A
No explanation has been provided for this answer.
The substance often use for vulcanization of rubber is ...
Benzene reacts with hydrogen in the presence of nickel catalyst at 180ºC to give? ...
An example of aromatic compound is? ...
Which of the following is not a direct petroleum product? ...
The component of an atom that contributes least to its mass is the ...
Give the common name for the following compound (CH3)2 CH CH2 -Br...