Indian army has published the notification for SSC Tech 56 men and SSC Tech 27 women for the course commencing at OTA Chennai from April 2021
Which among the following is an element?
Alumina
Brass
Graphite
Silica
Consider the following equation for the formation of ammonia from the nitrogen and hydrogen
N2 + 3H2 = 2NH3
How many Hydrogen molecules are required to react with the 100 molecules of nitrogen
100
200
300
400
Which among the following is used as a moderator in nuclear reactors?
Ozone
Heavy Hydrogen
Heavy Water
Hydrogen peroxide
Which of the following contains the maximum percentage of nitrogen by mass?
Urea
Ammonium cyanide
Ammonium carbonate
Ammonium nitrate
Two elements Gallium and Oxygen combine to form a compound Ga2Og. Which among the following is the valency of Gallium
1
2
3
4
