The recent atomic weight scale is based on
1 1H1
2 1H2
3 6C12
4 8O16
The combustible material at the tip of a safety match sitck is 1 Sulphur 2 Manganese dioxide 3 Phosphorus 4 Antimony sulphide
Which variety of glass is heat resistant? 1 Hard glass 2 Flint glass 3 Pyrex glass 4 Bottle glass
The year in which magnetic observations were started in mumbai and thiruvananthapuram?
what is composition of fizzy drinks
Quartz crystals normally used in quartz clocks etc. is chemically 1 Sodium silicate 2 Germanium oxide 3 Silicon dioxide 4 None of these
Why is it necessary to cook food ?
What is the Nutrition ?
Soda water contains 1 Nitrous acid 2 Carbonic acid 3 Carbon dioxide 4 Sulphuric acid
meron po bang minerals ang astoroids po ba?
Chemical change does not take place in case of 1 Souring of milk into curd 2 Rusting of iron in atmosphere 3 Burning of magnesium ribbon in air 4 emitting of light by a red hot platinum wire
3 Answers Banking, Eastern Railway,
Which of the following is commonly called a ‘polyamide’? 1 Rayon 2 Orlon 3 Terylene 4 Nylon
What is the Protoplasm ?