Question 1Given that the  abundances of isotopes 54Fe, 56Fe and 57Fe are 5%, 90% and 5% respectively, the atomic mass of Fe is A55.85B55.95C55.75 D56.05 Question 2The spin only magnetic moment value (in Bohr magnetic units) of Cr(CO)6 A0 B2.84 C4.9 D 5.92 Question 3The correct statement about the following disaccharide isA Ring (a) is pyranose with a -glycosidic link BRing (a) is furanose with a -glycosidic link CRing (b) is furanose with a-glycosidic link D Ring (b) is pyranose with b glycosidic link Question 4The species having pyramidal shape is ASO3 BBrF3 CSi032─ DOSF2 Question 5Geometrical shapes of the complexes formed by the reaction of Ni2+with Cl- CN- and H20, respectively, are Aoctahedral, tetrahedral and square planar Btetrahedral, square planar and octahedralCsquare planar, tetrahedral and octahedral Doctahedral, square planar and octahedral Question 6Passing H2S gas into a mixture of Mn2, Ni2, Cu2 and Hg2 ions in an acidified aqueous solution precipitates ACuS and HgSBMnS and CuS CMnS and NiSDNiS and HgS Question 7Among the electrolytes Na2SO4 CaCl2 Al2(SO4)3 the most effeetive coagulating agent for Sb2S3 sol is  ANn2SO4 BCnCl2 CAl2(S04)3DNH4ClQuestion 8In the following carbocation, H/CH3 that is most likely to migrate to the positively charged carbon is A CH3 at C-4BH at C-4CCH3 at C-2D H at C-2Question 9The species which by definition has ZERO standard molar enthalpy of formation at 298 K Is ABr2 (g)BCl2 (g) C H20 (g) DCH4 (g)Question 10The packing efficiency of the two-dimensional square uiit cell shown below is A39.27% B68.02%C74.05% D78.54% Question 11Bombardment of aluminum by a-particle leads to its artificial disintegration in two ways, (i) and (ii) as shown.
And before these problem exercise you may also required some of the solved problem exercise for IIT JEE Mains.
An aspirant can solve the questions and make a note of the answers.
JEE Main 2014 Online Exam (9th April 2014).
IIT JEE Main 2015 Answer Key & Solutions is available on Disha Publication.
IIT JEE – 2010 Paper – I with Answers. There are different subject’s MCQs – Multiple Choices Questions are given from different subjects.
Each online tests are self explanatory and user friendly to attempt the same.
Example is shown above
| Services | Explanation |
| Theory & Illustartions | Basic and Advanced level theory with illustrations and shortcuts for each chapter |
| Concept builders | Question bank containing problems based on concepts given in theory. |
| Assorted objectives | 30-40 Assorted questions for each chapter. |
| Brain bogglers | Program containing brain boggling question bank with solutions. |
| Concept maps | Chapterwise concept maps to revise the theory and formue used. |
| Nutshell | Summary of each chapter in the end of the chapter. |
| Objective practice | To practice the questions online, with smart solutions on just one click. |
| Online test | Online test to check the level of preparation with instant result |
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 JEE Main Answer Key  ALL SET     JEE Main 2016 Official Answer Key SET E SET F SET G SET H Click Here to Download JEE Main 2016 Answer Key by Aakash Institute SET E SET F SET G SET H Click Here to Download JEE Main 2016 Answer Key by FIITJEE SET E SET F SET G SET H Click Here to Download JEE Main 2016 Answer Key by Allen Kota SET E SET F SET G SET H Click Here to Download JEE Main 2016 Answer Key by Resonance SET E SET F SET G SET H Click Here to Download JEE Main 2016 Answer Key by T.I.M.E. Click here for Paper-2 key. The JEE main exam question paper has code number like Code p, q, r, s and but from last years the question papers codes are changed as Set A, Set B, Set C, Set D, Set E, Set F, SET G..
CHEMISTRY QUESTION PAPER-1. What percentage by volume of this lattice is empty space? (ii) The standard molar enthalpies of formation of cyclohexane (1) and benezene (1) at 25󿼇C are -156 and + 49 kJ mol -! respectively.
Most of people may complete whole syllabus before the exam. JEE Main multiple choice questions require aspirants to pick the correct answer from a set of options. There are generally four options to every question, out of which one, or more than one option is correct
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