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Soda-acid fire extinguisher involves the reaction between 1 Sodium hydroxide and nitric acid 2 Sodium bi carbonate and sulphuric acid 3 Sodium sulphate and carbonic acid 4 Sodium carbonate and hydrochloric acid
5 15535The pink color of Bayer’s reagent is discharged when acetylene is passed through it. This is due to the formation of 1 Acetic acid 2 Ethylene 3 Water 4 Oxalic acid
2 7417A mixture of salt and sand can be separated by 1 Sublimation 2 Dissolving in water 3 Gravity separation 4 Dry distillation
CISF,
3 7369The 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
3 7543Which of the following metals react with nitrogen at room temperature to form nitride? 1 Sodium 2 Potassium 3 Magnesium 4 None of these
3 6280The ore of which of the following metals can be concentrated by hydraulic washing? 1 Tin 2 Sodium 3 Iron 4 Manganese
3 6536Which of the following re synthetic rubbers? 1.Thiokol 2.Isoprene 3.Neoprene 1 1 and 2 2 2 and 3 3 1 and 3 4 1,2 and 3
3 5209How 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
4 13812Post New General Science Questions
When a person sends a message to someone with the Internet, there are steps that happen to the recipient to receive the message. How does the recipient know that the message was not edited by someone else?
Name the scientist who has been invited by the Srilankan Governement to have a Study on Employment development?
Explain the Evolution of Science as a discipline in the Medieval Period
What is the speed of arihant?
Write two characteristics of Science.
Why we use nhexane inplace of hexane in mobilepase preparation
What is the work of a patent engineer? Does the experience in working as patent engineer helps in finding a job in a refinery?
When was the atomic energy regulatory board ( aerb ) constituted?
When was the administration control of terls enstrusted to physcial research laboratory, ahmedabad?
Which is the regulatory authority of atomic energy in india?
Why capacitor is not allow dc ?? What the reason?
What was the code name given to the first explosion?
Who is the oldest cosmonaut?
what the defference from anti virus and spyware and adware also? Please descript?
Who invented telescope?
