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Chemistry · PYQ NEET UG 2023

हिन्दी

Which amongst the following molecules on polymerization produces neoprene?

  1. \( \mathrm{H_2C=C(Cl)-CH=CH_2} \)
  2. \( \mathrm{H_2C=CH-CH=CH_2} \)
  3. \( \mathrm{H_2C=CH-C\equiv C-CH_3} \)
  4. \( \mathrm{H_2C=C(CH_3)-CH=CH_2} \)

Correct answer · Option 1

\( \mathrm{H_2C=C(Cl)-CH=CH_2} \)

Explanation

Neoprene is the polymer of 2-chlorobut-1,3-diene (chloroprene), represented by \( \mathrm{H_2C=C(Cl)-CH=CH_2} \).

Related questions

Homoleptic complex from the following complexes is :→The element expected to form largest ion to achieve the nearest noble gas configuration is:→Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R : \n Assertion A : In equation \( \Delta_r G = -nFE_{\text{cell}} \), value of \( \Delta_r G \) depends on \( n \).\nReasons R : \( E_{\text{cell}} \) is an intensive property and \( \Delta_r G \) is an extensive property.\nIn the light of the above statements, choose the correct answer from the options given below:→Which complex compound is most stable?\n(1) \( [\text{Co}(\text{NH}_3)_4(\text{H}_2\text{O})\text{Br}](\text{NO}_3)_2 \)\n(2) \( [\text{Co}(\text{NH}_3)_3(\text{NO}_3)_3] \)\n(3) \( [\text{CoCl}_2(\text{en})_2]\text{NO}_3 \)\n(4) \( [\text{Co}(\text{NH}_3)_6]_2(\text{SO}_4)_3 \)→
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