Which of the following ions is a pollutant in drinking wa...
Which of the following ions is a pollutant in drinking water even in trace amounts?
Ca2+
Hg2+
Mg2+
Fe2+
Correct answer is B
No explanation has been provided for this answer.
Which are the correct IUPAC names for H-CO\(_2\)CH\(_3\) and CH \(\equiv\) CH...
The filter in the cigarette reduce the nicotine construct by ...
The property of a chemical reaction that is affected by the presence of a catalyst is ...
Which of the following species does not contain a co-ordinate bond? ...
Which of the following is a set of neutral oxides? ...
What are the possible oxidation numbers of an element if its atomic number is 17? ...