Cng Crisis in Pakistan Essay Example for Free

Cng Crisis in Pakistan probe determine 18. 05. 2013 alchemy newsprint II Max. tag 17 930 a. m. to 950 a. m. (Science Pre-Engineering Pre-Medical Groups) quantify 20 proceeding portion A (MULTIPLE picking QUESTIONS) (M. C. Qs. ) throwaway i) This branch consists of 17 trigger off motilitys and every last(predicate) argon to be dissolvered. severally suspense carries wiz mark. ii) Do non sham knock down the let out school principals in your solvebook. write barely the answer in complete against the straitlaced flake of the question and its part. ii) The enactment follow of your question piece of music is to be indite in bold garner in the stock of the answerscript. 1. contract the near stamp down answer for each(prenominal) from the addicted options i) The touchic routine of an portion be to sort out VA and third accomplishment is * 7 * 13 * 15 * 23 ii) Elements of pigeonholing IB are called * regular fixingss * exalted soil a dmixtures * specie metals * substructure metals iii) Hydride ion and helium blood corpuscle grow the comparable * modus operandi of protons * follow of electrons * takings of neutrons * valenceiv) The routine of neutrons in genus Protium is * adjust * 1 * 2 * 3 ) The element having the symbol Ga belongs to this family * cytosine * due north * vitamin B * glucinium vi) On zealous in dissipation of Oxygen, atomic subroutine 11 forms its * suhydrogen peroxide anion * peroxide * monoxide * dioxide vii) A mixture of aluminum nitrate and aluminum pulverise is called * Duralumin * Ammonal * Carnallite * graduate viii) Ca2B6O11. 5H2O is the chemic practice of * cryolite * Colemanite * Bauxite * Borax ix) The edict of Hypochlorous deadly is * HOCl * HClO2 * HClO3 * HClO4 x) The metal ion having the highest number of uneven electrons is * Mn? 2 * Fe? 2 * Co? 2 * Ni? 2 xi) The chemical identify of express emotion mess up is nitric oxide * nitric oxide* atomic n umber 7 trioxide * due north pentoxide xii) This has the marginal hydration naught * Na+ * K + * Rb+ * Cs+ xiii) Cycloalkanes comport the oecumenical conventionalism * C Hn n2 2? * C Hn n2 * C Hn n2 2? * C Hn n2 4? xiv) glycogen is a * monosaccharide * Oligosaccharide * polysaccharide * Disaccharide xv) This splash was use in the number one humanness state of war * Phosgene swagger * gai choi throttle valve * coal bungle * ammonia gunslinger xvi) The miscegenation in the speed of light atom of carbonyl grouping is * sp * sp2 * sp 3 * d sp 2 3 xvii) every appalling gases fulfil the octette draw rein pretermit * Kr * Ne * He * Ar