Question
Doping silicon with gallium forms what type of
semiconductor?Solution
When silicon is doped with gallium, the resulting material becomes a p-type semiconductor. Gallium introduces "holes" in the crystal lattice that can accept electrons, facilitating electrical conductivity.
Which one of the following is not a greenhouse gas?Â
Which one of the following contributes largely to the greenhouse effect?
Find the odd one:
The chief source of naphthalene isÂ
The electronic configuration of an atom having atomic number 20 isÂ
When water itself combines chemically with some element or mineral it is calledÂ
When Hydrogen starts burning in air it produces?
The most reactive among the halogens isÂ
Of the following which one pollutes the air of abig city?Â
KMN04 can be used as a/an