Organic Chemistry : Some Basic Principles and Techniques – Chemistry | NEET Online Mock Test Leave a Comment / Blog / By admin Online Mock Test Description Mock Test Organic Chemistry : Some Basic Principles and TechniquesExamNEET Medical TestSubjectChemistry Marks 100No. Questions50 QuestionsTime50 Minutes Some Basic Principles and Techniques Instruction for Online Mock Test : 5 Sorry! Time up Organic Chemistry : Some Basic Principles and Techniques - NEET (Chemistry) Best of Luck! 1 / 50 1 2 3 4 2 / 50 1 2 3 4 3 / 50 1 2 3 4 4 / 50 How many possible structural isomers of C5H11CI? 6 7 8 5 5 / 50 1 2 3 4 6 / 50 Constitutional isomers Enantiomers Diastereomers Super impossible without bond rotation 7 / 50 Total number of optical isomers possible for 2, 3 dibromobutane is 2 4 3 8 8 / 50 1 2 3 4 9 / 50 I only I, III, IV II, III III, IV 10 / 50 Styrene can be purified by Simple distillation Fractional distillation Vaccum distillation Steam distillation 11 / 50 In Duma's method of estimation of nitrogen 0.35 g of an organic compound gave 55 ml of nitrogen collected at 300K temperature and 715 mm pressure. The percentage composition of nitrogen in the compound would be [Aqueous tension at 300K 15 mm] 16.45 15.45 18.45 17.45 12 / 50 1-Bromo-3-nitrobenzene 1-nitro-3-Bromobenzene 1-Bromo-3-nitrobenzene 1-nitro-3-bromobenzene 13 / 50 1 2 3 4 14 / 50 During nitrogen estimation of an organic compound by Kjeldahl's method, the ammonia evolved by 0.5g of the compound neutralised 10ml of 1(M) H2SO4. Calculate the percentage of nitrogen in the compound. 56% 75% 48% 40% 15 / 50 4-Bromo-3-oxocyclohexane-carboxylic acid 3-Bromo-4-oxocyclohexanoic acid 2-Bromo-4-carboxyhexanone 2-Bromo-5-carboxycyclohexanone 16 / 50 Number of positional isomers possible in C6H3Cl3 with benzene ring will be 2 3 4 5 17 / 50 1 2 3 4 18 / 50 How many distinct terminal alkenes are possible for a compound having molecular formula C6H12 1 4 5 6 19 / 50 How many geometrical isomers are possible for CH3 - CH = CH - CH = CHCI ? 4 1 2 3 20 / 50 1 2 3 4 21 / 50 1 2 3 4 22 / 50 0.56g of an organic compound was kjeldahlised. Ammonia evolved was passed in 50 cc of 1N H2SO4. Residual acid needed 60 cc of N/2 NaOH. The percentage of 'N' in this compound is 14 28 42 50 23 / 50 3 Hydroxy-2-methyl butanoic acid 3 Hydroxy-2-methylidenebutanoic acid 3 Hydroxy-2-ethylenebutanoic acid 3 Hydroxy-2-ethylidene butanoic aicd 24 / 50 How many cyclic structures are possible for C4H6? 3 5 4 6 25 / 50 1 2 3 4 26 / 50 Select the compound(s) having one stereoisomeric form with zero dipole momentI) Pent-2-eneII) 2,3-dichlorobut-2-eneIII) 1, 3-dichlorohexaneIV) But-2-ene I, II II, IV I, III III, IV 27 / 50 2 3 4 1 28 / 50 1 2 3 4 29 / 50 1 2 3 4 30 / 50 1 2 3 4 31 / 50 1 2 3 4 32 / 50 Carbon and hydrogen in organic compound are detected by heating compound with FeO CaO CuO MnO 33 / 50 The number of possible enantiomeric pair that can be produced during monochlorination of 2-methyl butane is 3 4 2 1 34 / 50 Identify incorrect statementSN1 reaction at chiral centre proceeds with less than 100% racemizationC6H5CH2Cl more reactive than CH2 = CH - CH2 - Cl towards KI in acetoneNeopentyl halide can give only SN1 reaction with KOH (aq)CH3 - Br cannot give SN1 and E1 reaction 1 2 3 4 35 / 50 1 2 3 4 36 / 50 Which alkene has minimum heat of hydrogenation 2, 3-dimethyl-2-butene 2-methylpropene Propene 2-butene 37 / 50 1 2 3 4 38 / 50 1 2 3 4 39 / 50 1 2 3 4 40 / 50 The number of chiral centre present in 3, 4- dibromo-2-pentanol is 1 2 3 4 41 / 50 1 2 3 4 42 / 50 Which one of the following method is useful for separating a solution (miscible) benzene + CHCI3? Distillation Sublimation Filteration Crystallisation 43 / 50 29.5 mg of an organic compound containing nitrogen was digested according to Kjeldahl's method and the evolved NH, was absorbed in 20 ml of 0.1 M HCI solution. The excess of acid required 15 ml. of 0.1M NaOH solution for complete neutralisation. The percentage of nitrogen in the compound is 56.3 59 23.7 47.9 44 / 50 1 2 3 4 45 / 50 1 2 3 4 46 / 50 1 2 3 4 47 / 50 1 2 3 4 48 / 50 1 2 3 4 49 / 50 1 2 3 4 50 / 50 1 2 3 4 Your score isThe average score is 22% 0% Restart quiz next chapter : Hydrocarbons