Chemistry-Paper

Sample Paper 2010 discipline XII Subject Chemistry Time: 3 HrsMax Marks: 70 General Instructions A. totally questions are compulsory. B. Questions 1 to 8 are very sharp answer sheath carrying 1 mark severally(prenominal). coiffure them in peerless disapprobation each. C. Questions 9 to 18 are nobble answer grammatical cocktail dress carrying 2 marks each. Answer each of them in near(a) 30 words. D. Questions 19 to 27 are also dead answer type carrying 3 marks each. Answer each about 50 words. E. Questions 28 to 30 are languish answer type carrying 5 marks each. Answer in about 70-100 words. F. Use pound tables if necessary, use of calculators is not permitted. 1. stimulate the monomer of Glyptal 2.Predict the order of reaction & de terminationine its half-life if commit constant is 12.87hr-1 3Write the IUPAC give ear of the avocation mix: C6H5CH2NCH2Cl 4.What is the routine of desorption in the process of contact action? 5.How many wicket portal points are there in a end take cubic unit mobile phone? 6.Why do phenols lavatory be easily nitrated as compared to benzene? 7. inform the term OLIGOSACCHARIDES with an instance ? 8.How is Zirconium purified ? 9.a) What is the effect of temperature on conductance of semiconductors & why ? b) fluid has move on length 218pm crystallizes in FCC cell. count the radius of Ag element? 10.

Compute the cell potential for the avocation cell Ni(s) | Ni2+(aq) (0.01M) || Ni2+(aq) (0.1M) | Ni(s) period E0Ni2+(aq)/Ni(s) = - 0.25V at 250C 11.Explain one main difference amidst the following pairs of each with suitable examples a) Physisorption & Chemisorption b) inbred & Extrinsic colloids 12.Explain the following a) Enzyme catalysis b) Zeta Potential 13.a) Draw the social coordinate of Perchloric acid b) Why is electron parity of class 15 about zero ? or a) Draw the structure of Pyrosulphuric acid b) SF6 is an lazy non-toxic gas, why? 14.What happens when a) Conc. sulphuric acid is added to calcium fluoride b) SO3 is passed through...If you fatality to ram a affluent essay, order it on our website: Ordercustompaper.com

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