____ is the largest among the water sources?
Lakes
River
Ocean Water
Wells
The disease is caused by insect vectors which breed in water?
Scabies
Amoebiasis
Schisto Somiasis
Yellow Fever
Which one of this found to be the good choice among the alternate fuel?
Hydrogen
Oxygen
Petrol
Diesel
This alcohol is made by fermenting the sugar component of plant materials?
Methanol
Carboxylic acid
Propanol
Bio ethanol
CFL means?
Connected Fluorescent Lights
Controlled Fluorescent Lights
Compressed Fluorescent Bulbs
Compact Fluorescent Light Bulbs
____ is a potent green house gas?
Oxygen
Methane
Hydrogen
All of the above
The mas of gas dissolved in a fixed volume of a liquid is directly proportional to the pressure of the gas. This statement in known as which law?
Henry's Law
Gay Lussac Lay
Boyles Law
Raoult's Law
Which of the following have independent existence?
an atom of nitrogen
an atom of helium
a molecule of chlorine
both (b) and (c)
The atomic mass of sulphur is 32. it has atomicity 8. The molecular mass of sulphur is ____?
32
8
256
42
Gram molecular mass of nitrogen is________ ?
35
38
25
28
0 comments : { Online Quiz } Important Science Questions for TNPSC - 46
0 comments : { Online Quiz } Important Science Questions for TNPSC - 46