A noble gas with a high power of fog penetration used in ...
A noble gas with a high power of fog penetration used in aerodrome beacons is?
krpton
argon
helium
neon
Correct answer is D
No explanation has been provided for this answer.
Zone refining is used for the purification of ...
It can be concluded that gastric juice ...
The existance of two or more forms of the same element in the same physical state is known as ...
Which of the following types of hybridization gives rise to tetrahedral molecules?...
The soft solder used for welding and plumbing is alloy of ...
Aluminium is extracted electrolysis from ...
Water for town supply is chlorinated to make it free from? ...