Science General Knowledge:
1: The hottest part of the gas flame is known as?
Non luminous zone
2: Potassium permanganate is used for purifying drinking water, because it ?
Is an oxidising agent
3: Which of the following is the Unit of work?
Joule
4: Who developed Hydrogen Bomb?
Edward Teller
5: Global warming increases primarily due to increase in the levels of ?
Carbon dioxide
6: What is psephology ?
study of elections
7: Which one of the following is an act of man that disturbs the ecological
balance?
Lumbering
8: Petrology is the study of?
Rocks
9: A tree’s age can be found by?
counting the number of annual
rings
10: The red colour of ripe tomatoes is due to the presence of ?
Carotenoids
11: When a person cries, there is a watery discharge from the nose due to
activation of?
Lachrymal gland
12: Mercury is generally used in thermometers because it has ?
high coefficient of expansion
13: To an observer on the lunar surface, during daytime, the sky will appear to
be?
Black
14: The pigment that protects plants from UV damage is ?
Carotenoids