Yes
No
Sufficient
Insufficient
Yes
No
Nitrogen
Carbon
Sulphur
Free electrons
Bonded electrons
CH2
C2H2
Ethene
Ethyne
Ketonic group
Aldehydic group
X is Sodium carbonate, Y is Carbon-di-oxide
X is Carbon-di-oxide, Y is Sodium carbonate
Yes
No
Wait!
Here's an interesting quiz for you.