The first metal used by man was
...The first metal used by man was
iron
copper
gold
bronze
Correct answer is B
No explanation has been provided for this answer.
Aqueous sodium trioxocarbonate (IV) solution is alkaline because ...
The refreshing characteristic taste of fizzy drinks is due ot the presence of ...
What is the chemical symbol for Antimony? ...
Which of the following is used in rocket fuels? ...
Which of the following substances cannot be classified as a heavy chemical? ...