Practice Questions

Q52.Which of the following name formula combinations is not correct? (1) K2 [Pt(CN)4] - Potassium tetracyanoplatinate (2) [Mn(CN)5]2− - Pentacyanomagnate (II) ion (II) (3) K [Cr(NH3)2Cl4] - Potassium diammine (4) [Co(NH3)4 (H2O)I]SO4 - Magnetron value. tetrachlorochromate (III)

Q52.The octahedral complex of a metal ion M3+ with four monodentate ligands L1, L2, L3 and L4 absorb wavelengths in the region of red, green, yellow and blue, respectively. The increasing order of ligand strength of the four ligands is (1) L4 < L3 < L2 < L1 (2) L1 < L3 < L2 < L4 (3) L3 < L2 < L4 < L1 (4) L1 < L2 < L4 < L3

Q52.Allyl phenyl ether can be prepared by heating : (1) CH2 = CH - Br + C6H5 - CH2 - ONa (2) C6H5 - CH = CH - Br + CH3 - ONa (3) CH2 =​ CH - CH2 - Br + C6H5ONa (4) C6H5Br + CH2 = CH - CH2 - ONa

Q53.The correct statement for the molecule CsI3 , is : (1) It is a covalent molecule. (2) It contains Cs+ and I−3 ions. (3) It contains Cs3+ and I− ions. (4) It contains Cs+ , I− and lattice I2 molecule.

Q53.Among the following species the one which causes the highest CFSE, Δ0 as a ligand is: (1) CN− (2) NH3 (3) F− (4) CO

Q53.Which of the following compounds will not be soluble in sodium bicarbonate? (1) 2, 4, 6 - Trinitrophenol (2) Benzene sulphonic acid (3) o - Nitrophenol (4) Benzoic acid

Q54.Which one of the following substituents at para-position is most effective in stabilizing the phenoxide ion ? (1) -CH3 (2) -OCH3 (3) -COCH3 (4) -CH2OH

Q54.Which one of the following complexes will most likely absorb visible light? (At nos. Sc = 21, Ti = 22, V = 23, Zn = 30 ) (1) [Sc(H2O)6]3+ (2) [Ti(NH3)6]4+ (3) [V(NH3)6]3+ (4) [Zn(NH3)6]2+

Q54.Chlorobenzne reacts with trichloro acetaldehyde in the presence of H2SO4 . The major product formed is: (1) (2) (3) (4)

Q54.In a nucleophilic substitution reaction : R −Br + Cl−DMF→ R −Cl + Br− , which one of the following undergoes complete inversion of configuration ? (1) C6H5CHC6H5Br (2) C6H5CCH3C6H5Br (3) C6H5CH2Br (4) C6H5CH2CH2Br

Q55.The most suitable reagent for the conversion of R −CH2 −OH →R −CHO is : (1) KMnO4 (2) K2Cr2O7 (3) CrO3 (4) PCC (Pyridinium Chlorochromate)

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

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

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.

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

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

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

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

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

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

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