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.
An element X has two isotopes, 65X30 and 66X30 with relative abundance of 6...
The major product in the solvay process is ...
Which of the following is not a member of the homologous series of the paraffins (alkanes)? ...
If 50 cm3 of a saturated solution of KNO3 at 40 °C contained 5.05 g of the salt, i...
Which of the following acts both s a reducing and an oxidizing agent? ...
A catayst which increases the rate of a chemical reaction does so by ...
H3PO4(aq) + H2O(l) ↔ H2PO4-(aq) + H3O+(aq) ΔH = -13kJ at 298K In the reaction above, an increa...