Search SchoolNGR

Friday, 03 April 2026
Register . Login

One moleof a hydrocarbon 36g of carbon and its density is 20. The structure of ...

One mole of a hydrocarbon 36g of carbon and its density is 20. The structure of hydrocarbon is (organic chemical)
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A CH\(_2\)C = CH\(_2\)
  • B CH\(_3\)CH = CH\(_2\)
  • C CH\(_3\)CH\(_2\)C = CH
  • D CH\(_3\)CH\(_2\)CH\(_3\)
Correct Answer: Option A
Explanation:
2VD = Rmm
VD = Vapour Density, Rmm = relative
2 × 20 = 40 molecular mass
Mole of carbon =Â 36/12
= 3
Mole of H\(_2\) = 40 − 36
= 4
The compound contains 3 moles of carbon and 4 hydrogen

Share question on: