I think ethers are being referred to in this questions since an ether is defined by having a oxygen atom that is directly bonded to carbons on both sides.
I hope this helps. Let me know if you any further questions or if you anything to be clarified.
C both are very reactive i guess
Answer: option B and option C
Explanation:
Answer:
1 because the last one is 1 and the previous shell was complete.
