An element used in the production of matches is
...An element used in the production of matches is
nitrogen
aluminium
copper
sulphur
Correct answer is D
No explanation has been provided for this answer.
The size (diameter) of five elements are in the order R < T < W < X < Y, Y being the lar...
Which of the following atoms represents deuterium? ...
Changes in the physical in the scheme above.The letter X,Y and Z respectively represent...
The following oxides react with both acids and bases to form salts except ...
Catalytic hydrogenation of alkenes produces compounds with the general formula ...