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Physical properties of Alkynes
(a) it is a colourless gas. It comprises a garlic odour. The odour is because of existence of impurities of phosphorous and hydrogen sulphide. Though, pure acetylene has pleasant odour.
(b) It is insoluble in water but very soluble in alcohol and acetone. Acetylene is transferred within high pressure in acetone soaked on porous material packed in steel cylinders.
(c) the boiling point of it is - 840C.
(d) It is lighter as compared to air. It is somewhat poisonous in nature.
(e) It burns along with luminous flame and generates explosive mixture with air.
In the reactant SO2 + O2 , then in the product it became SO3 , how?
The number of unpaired electrons in nitrogen is: (1) 1 (2) 3 (3) 2 (4) None of these Ans: 3
How Ceriumis analyzed specrometrucally?
240 g of water at 20 degree C are mixed with a sample of iron at 500 degree C. The final temperature of the system is 42 degree C. Find the mass of the iron sample
Soaps and detergents Sodium and pottasium salts of fatty acids such as palmitic acid, stearic acid, oleic acid etc are called soaps, while detergents are ammonium or sulphonate
Q. How to evaluate mass number? An isotope of an element is recognized by its mass number which is the sum of the number of protons and neutrons in the atom's nucleus. Mas
Uses of Acetic anhydride (a) Acetic anhydride is used as an acetylating agent. (b) Acetic anhydride is used for the detection and estimation of hydroxyl and amino group.
Quantitative analysis by Flame Photometry?
In the following which substance will have highest boiling point: (1) He (2) CsF (3) NH 3 (4) CHCl 3 Ans: CsF
tell me the berzelius hyphothesis in hindi
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