According to Dalton’s atomic theory, the smallest particle
which can exist independently is
1 An atom
2 A molecule
3 A cation
4 An anion
Which of the following is used to coagulate synthetic fibers from solution? 1 Hydrochloric acid 2 Sulphuric acid 3 Nitric acid 4 None of these
is there any device to convert to mechanical energy into electrical energy
Who discovered radio telescope?
which country is known as thunderbolt in the world
The process by which an organic compound breaks down into simpler compounds on heating to high temperature is known as 1 Armatisation 2 Polymerization 3 Pyrolysis 4 Reduction
Which of the following substances undergoes chemical change on heating? 1 Sodium chloride 2 Silica 3 Lead nitrate 4 Platinum wire
Which of the following gases is lighter than air? 1 Carbon dioxide 2 Oxygen 3 Ammonia 4 Chlorine
Titanium is purified by 1 Zone refining 2 Electrolysis 3 Van Arkel method 4 Hydraulic washing
Who commanded the challenger’s first flight?
What is one light year?
Difference between Respiration and Photosynthesis ?
Mesons are found in 1 ?-rays 2 Laser beam 3 X-rays 4 Cosmic rays
3 Answers ABC, Indian Army, JSSC,