$H_{3}C-\stackrel{C{H}_3}{\stackrel{|}{\underset{C{H}_3}{\underset{|}{C}}}}-C{H}_2-\stackrel{C{H}_3}{\stackrel{|}{\underset{C{H}_3}{\underset{|}{C}}}}-C{H}_3$

How many $1^0$ carbon atoms are there in the compound ?

Q. How many number of $1^{\circ },2^{\circ }and{3}^{\circ }$ carbon atoms in the following compounds ?

Q. The correct IUPAC name of the compound :

Q.

Which hybrid orbitals are used by carbon atoms in the following molecules?

CH₃–CH₃; (b) CH₃–CH=CH₂; (c) CH₃-CH₂-OH; (d) CH₃-CHO (e) CH₃COOH

Q. For the given reaction how many products are optically active (all isomers) :

Q. The two compounds
${CH}_3-{CH}_2-\stackrel{O\parallel }{C}-{CH}_2-{CH}_2-{CH}_3$ and ${CH}_3-\stackrel{O\parallel }{C}-\stackrel{{CH}_3|}{\underset{|{CH}_3}{C}}-{CH}_3$
may be considered as: