JEE Main 2021 · ChemistryMultiple choiceMatch the listMediumRecall
JEE Main 22 July 2021, Shift 2, Chemistry Q49
Question 49 of 90 in this shift, Chemistry question 19 of 30, Section A.
Match List - I with List - II :
List - I
List - II
(a) Chloroprene (i) [figure: skeletal structure drawn in lines only: a vertical stub line (no atom label) on a carbon that has a double bond to the left and a single bond to the right, followed by a further double bond]
(b) Neoprene (ii) [figure: same skeletal structure with Cl on the vertical bond]
(c) Acrylonitrile (iii) [figure: repeating unit in brackets with subscript n: chain with a Cl on the vertical bond at a carbon double-bonded within the chain]
(d) Isoprene (iv)
Choose the correct answer from the options given below :
The figure, in words
List II (i) and (ii) are drawn skeletal structures; in (i) the substituent bond at the top is an unlabelled vertical line, in (ii) it ends in Cl; (iii) is a bracketed repeat unit with Cl and subscript n; (iv) is printed text.- (1)(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
- (2)(a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
- (3)(a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
- (4)(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)Official answer
Official answer
Option 4
NTA final key.
- Chapter
- Polymers
- Topic
- Polymers
- Idea tested
- Neoprene Synthesis