|
|
|
|
|
|
|
A fresh set of 50 random questions is generated every time you open this page and every time you refresh it. The form will be autosubmitted at end of 60 minutes after page open/refresh. For each of the following multiple choice questions, choose the most appropriate answer : 1. +I effect is shown by A. -N02 B. -Br C. -CH3 D. -Cl 2. Alkanes are also known as A. All of these B. Saturated hydrocarbons C. Paraffins D. None of these 3. For a reaction to be spontaneous at all temperatures A. DH < DG B. DG and DH should be negative C. DG = DS = 0 D. DG and DH should be positive 4. One mole of which of the following has the highest entropy? A. hydrogen gas B. liquid nitrogen C. mercury D. diamond 5. Which one of these is NOT true for benzene? A. It forms only one type of monosubstituted product. B. There are three carbon-carbon single bonds and three carbon-carbon double bonds. C. The heat of hydrogenation of benzene is less than the theoretical value. D. The bond angle between the carbon-carbon bonds is 1200. 6. Maximum number of molecules of CH3I that can react with a molecule of CH3NH2 are A. 4 B. 1 C. 2 D. 3 7. Hofmann's bromamide reaction is to convert A. amine to amide B. alcohol to acid C. acid to alcohol D. amide to amine 8. A distinctive and characteristic functional group of fats is A. a ketonic group B. an ester group C. a peptide group D. an alcoholic group 9. In aqueous solution glucose remains as A. Only in open chain form B. Only in pyranoze form C. Only in furanose forms D. In all three forms in equilibrium 10. The correct order of ionisation energy of C, N, O, F is A. C < N < O < F B. F < O < N < C C. F < N < C < O D. C < O < N < F 11. An ionic compound is expected to have tetrahedral structure if lies in the range of A. 0.414 to 0.732 B. 0.225 to 0.414 C. 0.732 to 1 D. 0.155 to 0.225 12. Among the following, which is least acidic? A. p-nitrophenol B. p-chlorophenol C. O-cresol D. phenol 13. 2 V, +0.5 V and –3.0 V respectively. The reducing power of these metals will be A. Z > X > Y B. X > Y > Z C. Y > Z > X D. Y > X > Z 14. a-maltose consists of A. two b-D-glucopyranose units with 1-4 glycosidic linkage B. two a-D-glucopyranose units with 1-2 glycosidic linkage C. one a-D-glucopyranose units and one b-D-glucopyranose unit with 1-2 glycosidic linkage D. two a-D-glucopyranose units with 1-4 glycosidic linkage 15. The electron configuration 1s2 2s2 2p6 3s2 3p6 3d10 represents A. Ni2+ B. Cu+ C. Ni D. Cu2+ 16. Which one of the following is paramagnetic? A. NO B. CO C. O3 D. N2 17. Entropy of the universe is A. continuously increasing B. continuously decreasing C. zero D. constant 18. Which is the most easily liquifiable rare gas? A. Kr B. Xe C. Ar D. Ne 19. 00 molal aqueous solution is A. 1.7700 B. 0.0177 C. 0.1770 D. 0.0344 20. One which is NOT an exception is A. Mg and Al B. N and O C. Na and Mg D. Be and B 21. The maximum number of tripeptides that can be obtained is A. 8000 B. 6410 C. 5360 D. 7465 22. Which one of the following has maximum number of atoms of oxygen? A. 2 g of water B. 2 g of carbon monoxide. C. 2 g of sulphur dioxide D. 2 g of carbon dioxide 23. The angle strain in cyclobutane is A. 24°44' B. 19°22' C. 9°44' D. 29°16' 24. For the given alkane the IUPAC name is A. 4-ethyl-8-methyl nonane B. 6-ethyl-2-methyl nonane C. 2-methyl, -6-propyl octane D. 1, 1 dimethyl-5-ethyl octane 25. Boyle's law states volume of a gas is inversely propotional to pressure provided A. All of these B. Temperature of gas is same. C. Mass of gas is same. D. None of these 26. Which one of the following is wrongly matched? A. [Cu (NH3 )4]+2 - square planar B. [Co (en )3 ]+3 - follows EAN rule C. [Fe (CN )6]-3 - sp3d2 D. [Ni(CO)4] - neutral ligand 27. The temperature of the slag zone in the metallurgy of Iron using blast furnace is A. 800 - 1000 °C B. 1500 - 1600 °C C. 1200 - 1500 °C D. 400 - 700 °C 28. The compound which gives turbidity immediately with Lucas reagent at room temperature is A. butan-1-ol B. 2-methyl propan-1-ol C. butan-2-ol D. 2-methyl propan-2-ol 29. When KBr is dissolved in water, K+ ions are A. hydrated B. hydrolysed C. oxidised D. reduced 30. The compound which is not founded during the dry distillation of a mixture of calcium format and calcium acetate is A. Ethanal B. Propanal C. Methanal D. Propanone 31. The chemical name of anisole is A. Methoxy benzene B. Acetone C. Propanone D. Ethanoic acid 32. Which of the following compound would not evolve CO2 when treated with NaHCO3 solution? A. benzoic acid B. salicylic acid C. phenol D. 4-nitro benzoic acid 33. Which of the following pairs of metals is purified by van Arkel method? A. Ga and In B. Ni and Fe C. Ag and Au D. Zr and Ti 34. The spin only magnetic moment of Mn+4 ion is nearly A. 3 BM B. 4 BM C. 5 BM D. 6 BM 35. At equilibrium 25% of O2 is used up. The total number of moles of all the gases present at equilibrium is A. 8.0 B. 6.5 C. 2.0 D. 7.0 36. When compared to DG0 for the formation of Al2O3 , the AG0 for the formation of Cr2O3 is A. unpredicted B. same C. lower D. higher 37. Dalton's law of partial pressures is applicable to which one of the following systems? A. NH3 + HCl B. H2 + Cl2 C. CO + H2 D. NO + O2 38. The set of quantum numbers for the outermost electron for copper in its ground state is A. 4, 2, 2, +½ B. 4, 0, 0, +½ C. 3, 2, 2, +½ D. 4, 1, 1, +½ 39. Which of the following electrolytic solutions has the least specific conductance `? A. 0.02 N B. 0.002 N C. 0.2 N D. 2 N 40. Its electonic configuration will be A. 1s22s22p63s23p3 B. 1s22s22p3 C. 1s22s22p63s23p2 D. 1s22s22p4 41. Maximum efficiency of a commercial refrigerator which operates between –10° (inside temperature) and 25°C (outside temperature) is A. 13.3% B. 11.45% C. 20% D. 24.75% 42. In which one of the given formulae of xenon compounds there are five a-bonds and three p-bonds in it? A. XeF3O2 B. XeF2O3 C. XeFO D. XeF2O2 43. 1 M HCI is mixed with 200 cm3 of 0.2 M NaOH is A. 0.292 kJ B. 3.392 kJ C. 1.292 kJ D. 2.292 kJ 44. 5 mole of each of H2, SO2 and CH4 are kept in a container. A hole was made in the container. After 3 hours, the order of partial pressures in the container will be A. pH2 > pCH4 > pSO2 B. pH2 > pSO2 > pCH4 C. pSO2 > pCH4, > pH2 D. pSO2 > pH2 > pCH4 45. In which one of the following, does the given amount of chlorine exert the least pressure in a vessel of capacity 1 dm3 at 273K? A. 6.023 x 1021 molecules B. 0.071 g C. 0.02 mole D. 0.0355 g 46. An octahedral complex is formed when hybrid orbitals of the following type are involved A. d sp2 B. d2sp3 C. sp2d2 D. sp3 47. The amino acid which is not optically active is A. alanine B. serine C. lactic acid D. glycine 48. The highest magnetic moment is shown by the transition metal ion with the configuration A. 3d9 B. 3d2 C. 3d5 D. 3d7 49. The correct set of four Quantum numbers for outermost electron of Potassium (Z = 19) is A. 4, 1, 0, B. 4, 0, 0, C. 3, 0, 0, D. 3, 1, 0, 50. A gas deviates from ideal behaviour at a high pressure because its molecules A. attract one another B. have kinetic energy C. show the Tyndall effect D. are bound by covalent bonds | |