The gas commonly used in advertisement sign-boards and decorative lights is
nitrogen
chlorine
hydrogen
neon
D.
neon
Which of the following is not a component of Smog?
Volatile Organic Compounds
Nitrogen Oxide
Sulphur Dioxide
Chlorine Oxide
Pick out the correct match.
Milk - Fibre and minerals
Egg Yolk - Protein and fat
Fleshy foods - Calcium and protein
Fish - Starch and vitamin
Identify the odd term amongst the following groups.
Microwaves
Coaxial cable
Optical fibre
Twisted pair wire
What is Dry Ice?
Solid carbon dioxide
Liquid nitrogen
Ice cubes and saw dust
Ice cubes and salt
Combustion is a
physical and chemical process
biological process
physical process
chemical process