(a) Which of the following are position isomers ? {:((i)" "CH_(2)=CH""(ii)" "CH_(3)-C-CH_(3)""(iii)" "CH_(3)-CH=C-CH_(3)),("|""||""|"),(""CH_(2)-CH_(3)""CH_(2)""CH_(2)):} (b) Write the IUPAC name of the functional isomer of CH_(3)CH_(2)CH_(2)CH_(2)CHO. (c) Which type of structural isomerism is shown by the following pair of compounds ? {:(""Br""CH_(3)),("|""|"),(CH_(3)-CH-CHBr_(2) and Br_(2)CH-CH-Br):}

(a) Which of the following are position isomers ? {:((i)" "CH_(2)=CH"

1.	(a) Which of the following are position isomers ? {:((i)" "CH_(2)=CH""(ii)" "CH_(3)-C-CH_(3)""(iii)" "CH_(3)-CH=C-CH_(3)),("\|""\|\|""\|"),(""CH_(2)-CH_(3)""CH_(2)""CH_(2)):} (b) Write the IUPAC name of the functional isomer of CH_(3)CH_(2)CH_(2)CH_(2)CHO. (c) Which type of structural isomerism is shown by the following pair of compounds ? {:(""Br""CH_(3)),("\|""\|"),(CH_(3)-CH-CHBr_(2) and Br_(2)CH-CH-Br):}
Answer» Solution :(a) Structure (i) and (ii) REPRESENT position ISOMERS as they differ in the position of the double bond. Structure (iii) has different molecular formula. It is therefore, not an ISOMER. (b) `CH_(3)-overset(O)overset("\|\|")(C)-CH_(2)-CH_(2)CH_(3)` : Pentan-2-one. (c) These represent the same compound. Their IUPAC name is ALSO same i.e., 1, 1, 2-tribromopropane.