testy
0

* ’	The addition of bromine molecule to cvciohexsene gives as a main product: a) bromocvclohexane; b) l,3-dibromocyclohexane; c) trans-l,2-dicylohexane; d) cis-1.2-dibromocyclohexane.
15	In following compounds indicate which can be optically active: a) hexafluoro-1,3-butadiene; b) octafluoro-l,2-pentadiene; c) octafluoro-2,3-pentadiene; d) octafluoropropane.
16 i |	One of the following compounds is not aromatic: a) cyclopentadienyl anion; b) pyndine; c) cyclopropenium cation; d) cyclopentadiene
|	The Hoffman rearrangement of butyramide gives: a) butylamine; b) propyl-amine; c) 2-methylpropyiamine; ci) 2-amino-l-butanal.
18	The oxidation of alkene using osmium tetraoxide gives; a) cis-vicinal diol; b) t.rans-vicinal diol; c) two molecules of aidehyde; d) one molecule of ketone
19	The s isome h2n-	tructures shown below are: a) identical; b) enantiomers; c) constitutional rs; d) diastereomers. COOH COOH —H H--NH2 ch3 ch3
20	The c 3S: c) c Br— H— C	ompound shown below has an absolute configuration; a) 2R, 3J{\ b) 2S. 2S, 3R; d) it is not a chiral compound. OOH — H —Br OOH

TotaJ number of marks 20