Question

21. Why unsaturated hydrocarbons are more
reactive than saturated hydrocarbons?
Or
Which of the two trans-but-2-ene or
trans-pent-2-ene is non-polar?​

Answer 1

Answer:

An unsaturated hydrocarbon is more reactive. Saturated molecules have only sigma bonds, which are very stable and hard to break. Unsaturated molecules, however, have pi bonds, and they are weaker. They deform the orbitals slightly and are more strained.

Answer 2

Answer:

ᴀɴ ᴜɴsᴀᴛᴜʀᴀᴛᴇᴅ ʜʏᴅʀᴏᴄᴀʀʙᴏɴ ɪs ᴍᴏʀᴇ ʀᴇᴀᴄᴛɪᴠᴇ. sᴀᴛᴜʀᴀᴛᴇᴅ ᴍᴏʟᴇᴄᴜʟᴇs ʜᴀᴠᴇ ᴏɴʟʏ sɪɢᴍᴀ ʙᴏɴᴅs, ᴡʜɪᴄʜ ᴀʀᴇ ᴠᴇʀʏ sᴛᴀʙʟᴇ ᴀɴᴅ ʜᴀʀᴅ ᴛᴏ ʙʀᴇᴀᴋ. ᴜɴsᴀᴛᴜʀᴀᴛᴇᴅ ᴍᴏʟᴇᴄᴜʟᴇs, ʜᴏᴡᴇᴠᴇʀ, ʜᴀᴠᴇ ᴘɪ ʙᴏɴᴅs, ᴀɴᴅ ᴛʜᴇʏ ᴀʀᴇ ᴡᴇᴀᴋᴇʀ. ᴛʜᴇʏ ᴅᴇғᴏʀᴍ ᴛʜᴇ ᴏʀʙɪᴛᴀʟs sʟɪɢʜᴛʟʏ ᴀɴᴅ ᴀʀᴇ ᴍᴏʀᴇ sᴛʀᴀɪɴᴇᴅ.