MCQs on Alkane
MCQs on Alkane Which of the following conformation of n-butane is the most stable? (a) eclipsed (b) gauche (c) staggered (d) skew boat Find the correct order for relative energies…
MCQs on Alkene
MCQs on Alkene Which of the following compounds react most readily with Br(g)? (a) C2H2 (b) C3H6 (c) C2H4 (d) C4H10 When propene reacts with HBr in the presence of…
MCQs on Half-Life
MCQs on Half-Life How many milligrams of tritium will remain after 49.2 years if the starting amount is 32 mg? The half-life of tritium is 12.3 years. (a) 8 mg…
MCQs on Acid-Base Titration
MCQs on Acid-Base Titration What is the molarity of the solution of barium hydroxide, if 35 ml of 0.1 M HCl is used in the titration of 25 ml of…
MCQs on Acid Rain
MCQs on Acid Rain The main contributors of acid rain are (a) sulphur oxides and carbon oxides (b) nitrogen oxides and sulphur oxides (c) carbon dioxide and carbon monoxide (d)…
MCQs on Distillation
MCQs on Distillation A mixture of o-nitrophenol and p-nitrophenol can be separated by (a) crystallisation (b) chromatography (c) sublimation (d) steam distillation Answer: (d) The commonly used method to separate…
MCQs on Sucrose
MCQs on Sucrose The phenomenon of mutarotation is not exhibited by (a) (–) Fructose (b) (+) Lactose (c) (+) Maltose (d) (+) Sucrose Answer: (d) Invert sugar is produced on…
MCQs on Crystal Field Theory
MCQs on Crystal Field Theory Which of the following complexes shows zero crystal field stabilization energy? (a) [Co(H2O)6]3+ (b) [Fe(H2O)6]3+ (c) [Co(H2O)6]2+ (d) [Mn(H2O)6]3+ Answer: (b) Which of the following…
MCQs on Fatty Acid Catabolism
MCQs on Fatty Acid Catabolism The free fatty acids are transported by blood associated with (a) β -lipoprotein (b) a fatty acid-binding protein (c) albumin (d) none of the above…
MCQs on Colloidal Dispersion
MCQs on Colloidal Dispersion Fog is an example of which type of colloidal system? (a) Gas in liquid (b) Solid in gasLiquid in gas (c) Gas in gas (d) Liquid…
MCQs on Catalyst and Catalysis
MCQs on Catalyst and Catalysis Which of the following is incorrect for a catalyst? (a) Bio-chemical reactions are mostly catalysed by enzymes (b) Catalyst does not start a reaction (c)…
MCQs on Metals and Non-metals
MCQs on Metals and Non-metals Which of the following metals is the most abundant in the earth’s crust? (a) Al (b) Fe (c) Na (d) Ca Answer: (a) Which of…
MCQs on Amines
MCQs on Amines In this reaction acetamide is converted to methanamine (a) Gabriel phthalimide synthesis (b) Carbylamine reaction (c) Stephen’s reaction (d) Hoffmann bromamide reaction Which of the following is…
MCQs on Molecular Orbital Theory
MCQs on Molecular Orbital Theory Which among the following has the shortest C-C bond length? (a) Ethene (b) Ethane (c) Benzene (d) Ethyne The oxygen molecule is paramagnetic. It can…
MCQs on Some Basic Concepts of Chemistry
MCQs on Some Basic Concepts of Chemistry Elements X and Y combine to form two compounds XY and X2Y. Find the atomic weight of X and Y, if the weight…
MCQs on Chemical Bonding and Molecular Structure
MCQs on Chemical Bonding and Molecular Structure C-O bond length is minimum in (a) CO2 (b) CO32- (c) HCOO– (d) CO Answer: (d) Molecules are held together in a crystal…
MCQs on Periodic Classification of Elements
MCQs on Periodic Classification of Elements Find the successive elements of the periodic table with ionisation energies, 2372, 520 and 890 kJ per mol respectively (a) Li, Be, B (b)…
MCQs on Chemical Equilibrium
MCQs on Chemical Equilibrium Find the pH of a solution when 0.01 M HCl and 0.1 M NaOH are mixed in equal volumes (a) 12.65 (b) 1.04 (c) 7.0 (d)…
MCQs on States of Matter
MCQs on States of Matter A container with a pin-hole contains equal moles of H2(g) and O2(g). Find the fraction of oxygen gas escaped at the same time when one-fourth…
MCQs on Organic Chemistry
MCQs on Organic Chemistry Which is the best-suited method for the separation of para and ortho-nitrophenols from 1:1 mixture? (a) crystallisation (b) chromatography (c) sublimation (d) steam distillation Answer: (d)…
MCQs on Environmental Chemistry
MCQs on Environmental Chemistry Photochemical smog normally does not contain (a) Chlorofluorocarbons (b) Peroxyacetyl nitrate (c) Ozone (d) Acrolein Answer: (a) Depletion of the ozone layer is caused due to…