The year in which magnetic observations were started in mumbai and thiruvananthapuram?
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What are all of the uses for a dynamo?
Glass is made of the mixture of 1 Quartz and mica 2 Sand and salt 3 Sand and silicates 4 None of these
How does a RCCB work? Difference between ELCB & RCCB?
Which gas is used for preparation of soda water? 1 Ammonia 2 carbon dioxide 3 Hydrogen 4 Nitric oxide
Two or more forms of a chemical element having different physical properties but rising to identical chemical compounds are called 1 Allotropes 2 Isotopes 3 Isomers 4 Isotones
What are the important factors of cosmic rays?
What is the Embrylogy ?
How does common salt help in separating soap from the solution after saponification ? 1 By decreasing solubility of soap 2 By increasing solubility of soap 3 By decreasing density of soap 4 By increasing density of soap
Which of the following reactions is used for increasing the number of carbon atoms in a chain? 1 Substitution reaction 2 Wurtz reaction 3 Friedel – Crafts reaction 4 Cannizzaro’s reaction
Heavy water is 1 Sea water (H2O+Salt) 2 D2O 3 H2O2 4 None of these
Study Of Life in outer space is known As
What is the Physiology ?