Category «Chemistry»

P – BLOCK ELEMENTS MCQs- 5

1) A solution containing NH4Cl and NaNO2 on boiling produces a) Nitrogen peroxide b) Ammonia c) Nitrous oxide d) Nitrogen 2) The stable halide of nitrogen is a) b) c) d) 3) In NH3 and PH3 the common property is their a) Odour b) Combustibility c) Basic nature d) None of these 4) Carbon monoxide …

P – BLOCK ELEMENTS MCQs – 3

1) Nitrogen is a relatively inactive element because a) Its atom has a stable electronic configuration b) It has a low atomic radius c) Its electronegativity is fairly high d) The dissociation energy of its molecule is fairly high 2) Which one of the following substances is used in the laboratory for a fast drying …

ORGANIC COMPOUNDS CONTAINING OXYGEN MCQs- 1

1) During the reaction of acetylene with dil. H2SO4 in presence of HgSO4, the compound initially formed is a) b) c) d) 2) Selective oxidation of R1C = C(CH2)/7CH = CHR2 with CrO3 in acetic acid gives a) b) c) d) 3) Which of the following on reductive ozonolysis will give only glyoxal? a) Ethylene …

ORGANIC COMPOUNDS CONTAINING OXYGEN MCQs- 2

1) When glycerol is added to water, which of the following behaviours would be observed ? a) Water will evaporate more easily b) The temperature of water will decrease c) The freezing point of water is lowered d) The viscosity of water will decrease. 2) Glycerol on warming with a small amount of hydriodic acid …

ORGANIC COMPOUNDS CONTAINING OXYGEN MCQs- 4

1) Which of the following is a polyprotic acid? a) Acetic acid b) Benzoic acid c) P-nitrobenzoic acid d) Oxalic acid 2) The strongest acid among the following is a) Oxalic acid b) Malonic acid c) Succinic acid d) Adipic acid 3) Phenol can be distinguished from acetic acid by a) Blue litmus test b) …

ORGANIC COMPOUNDS CONTAINING OXYGEN MCQs- 3

1) Which of the following shows electromeric effect ? a) Aldehydes b) Alkanes c) Alkyl amines d) Alkyl halides 2) In which of the following is the reaction at the SP2carbon essentially a nucleophilic attack: Benzene (I); Acetone(II); Ethyl acetate(III) a) II alone b) II and III c) I and III d) I, II and …

ORGANIC COMPOUNDS CONTAINING NITROGEN MCQs- 5

1) The conversion of m-dinitrobenzene into m- nitroaniline can be brought out with a) b) c) Sn + HCI d) None of these 2) Nitrobenzene can be converted into azobenzene by reduction with a) b) c) d) None of these 3) In the reduction of nitrobenzene to aniline, the intermediate is a) b) c) d) …

ORGANIC COMPOUNDS CONTAINING NITROGEN MCQs- 4

1) Match the compounds in List I with their nature from List II, as seen in aqueous medium from the combinations shown: a) I—C ; II—C ; III—B ; IV—A b) |-b ; II—C ; III—C ; IV—A c) |—c ; II—B ; III—B ; IV—C d) |-a ; II—A ; III—C ; IV—B 2) …

ORGANIC COMPOUNDS CONTAINING NITROGEN MCQs- 3

1) How many isomeric amines having the formula C3H 9N are possible? a) Two b) Three c) Four d) Five 2) The compound, (CH3)3 C – NH2 is a a) Primary amine b) Secondary amine c) Tertiary amine d) Quaternary ammonium salt 3) Which one of the following is a tertiary amine? a) Ethylamine b) …

ORGANIC COMPOUNDS CONTAINING NITROGEN MCQs- 1

1) Amongst the following, the compound which is most difficult to sulphonate is a) Benzene b) Nitrobenzene c) Toluene d) Chlorobenzene. 2) Benzaldehyde reacts with ammonia to give a) Benzaldehyde ammonia b) Urotropine c) Hydrobenzamide d) Ammonium benzamide 3) Anisole with HNO3 and conc. H2SO4 gives a) Phenol b) Nitrobenzene c) o- and p-Nitroanisoles d) …