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.
Particles in a solid exibit ...
The IUPAC name for CH3CH2COOCH2CH3 is...
In the reaction: 2Hl(g) ↔ H2(g) + l2(g)' ΔH = 10 kj; The concentration of iodine in the equil...
A suitable reagent for distinguish between ethanoic and ethanol is ...
The mixture of gases used in a photographer's flash tube is? ...
The formula (CH3),3 COH is that of a...
An anhydride is an oxide of non-mental? ...