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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.
Vulcanization of rubber The procedure of heating natural rubber with sulphur to enhance its properties is known as vulcanization. Vulcanization was illustrated by Charles Goody
copper reacts with oxygen to form two oxide X and Y .On analysis 1.535g of X yielded 1.365g of copper and 1.450g of Y yielded 1.160g of copper. [I] determine the chemical formula
Electron affinity : In a system of a neutral atom and an extra electron, when the additional electron is attracted from the infinity to the outer orbit of the neutral atom, the wo
For principle quantum numbern= 4 the total number of orbitals having l=3: (1) 3 (2) 7 (3) 5 (4) 9 Ans: 7
How can explain it
When NaCl is dissolved in water, the sodium ion become
Q.How can we determine Concentrations of Solutions? Ans. The concentration of a solution is the quantitative expression of the amount of solute dissolved in the solution.
Leibermann nitro test why we add concentrated acid
Q. Write an account of soda lime glass and safety glasses. Ans. Soda-Lime Glass or soft glass: It is the ordinary glass in which Na 2 O is added to the melt to oxide on hea
what are grignard reagants ? how are tthey prepared is laboratory ? what makes them so important in synthetic chemistry?
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