Practice Questions

Q55.In the hydroboration - oxidation reaction of propene with diborane, H2O2 and NaOH, the organic compound formed is: (1) CH3 CH2 CH2 OH (2) CH3 CH2 OH (3) CH3 CHOHCH3 (4) (CH3)3 COH

Q55.Tischenko reaction is a modification of: (1) Aldol condensation (2) Claisen condensation (3) Cannizzaro reaction (4) Pinacol-pinacolon reaction

Q55.Conversion of benzene diazonium chloride to chlorobenzene is an example of which of the following reactions? (1) Claisen (2) Friedel-craft (3) Sandmeyer (4) Wurtz

Q56.The final product formed when methylamine is treated with NaNO2 and HCl followed by hydrolysis is: (1) Nitromethane (2) Methylcyanide (3) Methyl alcohol (4) Diazomethane JEE Main 2014 (19 Apr Online) JEE Main Previous Year Paper

Q56.Which is the major product formed when acetone is heated with iodine and potassium hydroxide? (1) Acetophenone (2) Iodoform (3) Iodoacetone (4) Acetic acid

Q56.What is the product "C" after following reactions - JEE Main 2014 (06 Apr) JEE Main Previous Year Paper (1) (2) (3) (4)

Q56.The major product obtained in the photo catalysed bromination of 2-methylbutane is: (1) 1-bromo-2-methylbutane (2) 1-bromo-3-methylbutane (3) 2-bromo-3-methylbutane (4) 2-bromo-2-methylbutane

Q56.Which one of the following statements is not correct? JEE Main 2014 (11 Apr Online) JEE Main Previous Year Paper (1) Alcohols are weaker acids than water (2) Acid strength of alcohols decreases in the following RCH2OH > R2CHOH > R3COH (3) Carbon-oxygen bond length in methanol, (4) CH3OH is shorter than that of C −O bond length in phenol.

Q57.Which one of the following reactions will not result in the formation of carbon-carbon bond ? (1) Friedel Craft's acylation (2) Reimer-Tieman reaction (3) Cannizaro reaction (4) Wurtz reaction

Q57.In a set of reactions p - nitrotoluene yielded a product E The product E would be : (1) (2) (3) (4)

Q57.In the Victor-Meyer's test, the colour given by 1∘, 2∘ and 3∘ alcohols are respectively: (1) Red, colourless, blue (2) Red, blue, colourless (3) Colourless, red, blue (4) Red, blue, violet

Q57. The following reaction is known as: (1) Perkin reaction (2) Gatterman-Koch Formylation (3) Kolbe's reaction (4) Gattermann reaction

Q57.In the reaction, LiAlH4 PCl5 Alc. KOH −−−CH3COOH → A → B → C, the product C is : (1) Acetaldehyde (2) Acetylene (3) Ethylene (4) Acetyl chloride

Q58.The major product of the reaction is (1) (2) ​ ​ (3) (4) ​ ​

Q58.Phthalic acid reacts with resorcinol in the presence of concentrated H2SO4 to give: (1) Phenolphthalein (2) Alizarin (3) Coumarin (4) Fluorescein

Q58.On heating an aliphatic primary amine with chloroform and ethanolic potassium hydroxide, the organic compound formed is : (1) An alkanol (2) An alkanediol (3) An alkyl cyanide (4) An alkyl isocyanide

Q58.An organic compound A, C5H8O; reacts with H2O, NH3 and CH3COOH as described below: (1) (2) (3) (4)

Q58.Which one of the following is an example of thermosetting polymer? (1) Nylon -6,6 (2) Bakelite (3) Buna - N (4) Teflon

Q59.Aminoglycosides are usually used as: (1) antibiotic (2) analgesic (3) hypnotic (4) antifertility

Q59.Among the following organic acids, the acid present in rancid butter is : (1) Pyruvic acid (2) Acetic acid (3) Butyric acid (4) Lactic acid

Q59.Which among the following is classified as a condensation polymer? (1) Dacron (2) Neoprene (3) Teflon (4) Acrylonitrile

Q59.Complete reduction of benzene-diazonium chloride with Zn/HCl gives: (1) Aniline (2) Phenylhydrazine (3) Azobenzene (4) Hydrazobenzene

Q59.Structure of some important polymers are given. Which one represents Buna-S ? (1) (2) (3) (4) JEE Main 2014 (09 Apr Online) JEE Main Previous Year Paper

Q60.The reason for double helical structure of DNA is the operation of : (1) Van der Waals forces (2) Electrostatic attractions (3) Hydrogen bonding (4) Dipole - Dipole interactions

Q60.Which one of the following is used as Antihistamine? (1) Omeprazole (2) Chloranphenicol (3) Diphenhydramine (4) Norethindrone