|
|
| 1)Carboxylic acids and esters with same number of carbon atoms represent [1] tautomers [2] functional isomers [3] metamers [4] enantiomers [5] None of the above |
| 2)How many carbon atoms are present in lowest possible alkane which can exhibit enantiomerism [1] < 5> [2] < 6> [3] < 8> [4] < 7> [5] None of the above |
| 3)The instrument used for measuring specific rotation is [1] spectrometer [2] polarimeter [3] lactometer [4] ammeter [5] None of the above |
| 4)A certain compound contain three chirality centres. The maximum numbe of stereoisomers it can have is [1] < 8> [2] < 6> [3] < 9> [4] < 3> [5] None of the above |
| 5)d and l forms of tartaric acid are mixed in equal proportions. The mixture is called [1] utectic mixture [2] azeotropic mixture [3] diastreomers [4] racemic mixture [5] None of the above |
| 6)A compound whose molecule is superimposable on its mirror image inspite of the presence of chiral centres is called [1] diastereomer [2] meso compound [3] an enantiomer [4] a threo enantiomer [5] None of the above |
| 7)Which of the following is responsible for the inability of meso compound to show optical activity [1] Absence of chirality centre [2] Presence of more than one chirality centres [3] Disymmetric nature of its structure [4] Internal compensation [5] None of the above |
| 8)The process of separation of (d,l)-mixture into its constituents is referred to as [1] fractional distillation [2] resolution [3] fragmentation [4] sedimentation [5] None of the above |
| 9)Which of the following compound has chiral structure [1] 2-Methylpentane [2] 2,3-Dimethylpentane [3] Isoamyl alcohol [4] Trimethylamine [5] None of the above |
| 10)Maleic acid and fumeric acid are [1] homologues [2] geometrical isomers [3] enantiomers [4] diastereomers [5] None of the above |
| 11)How many chirality centres are present in the structure 1-chloro-2-methylcyclohexane [1] < 2> [2] < 3> [3] < 4> [4] < 1> [5] None of the above |
| 12)Which of the following exhibits stereoisomerism [1] 2-Methylbutene-1 [2] 3-Methylbutyne-1 [3] 3-Methyl butanoic acid [4] 2-Methyl butanoic acid [5] None of the above |
| 13)The compound whose molecules are superimposable on their mirror images even though they contain asymmetric carbon atoms is called [1] a meso compound [2] an erythro isomer [3] a threo isomer [4] a glycol [5] None of the above |
| 14)An enantiomerically pure acid is treated with racemic mixture of alcohol with one chirality centre the ester formed will be [1] optically active mixture [2] pure enantiomer [3] meso compound [4] racemic mixture [5] None of the above |