Question

How are the following pairs related?
(i) 2, 2-dimethylpropane and 2-methylbutane
(ii) Ethane and propane
(iii) C2H5C1 and C3H7Cl
(iv) C3H4 and C2H4

Answer 1

Answer:

i) 2,2-dimethylpropane (5) and 2-methylbutane (12) = C5H12

ii) ethane is the chemical organic compound with the chemical formula C. 2H. 6

propane is a three - carbon alkane with the moleculer formula C₃H₈

iii) chloroethane and chloropropane

iv) allen and ethylene

Explanation:

Answer 2

Answer:

1) Same formula (isomers)

2) Alkanes and homolouges

3)Same functional group ie. Chloro Alkane and homolouges

4) Unsaturated carbon chain

Explanation:

1) see the image. Both have same formula C5H12

2)Ethane and Propane(C2H6 and C3H8) both are Alkanes and are homolouges as they differ by CH-2 unit.[C2 H(2n+2)]

3) It's Chloro-Ethane and Chloro-Propane with same functional group Halo-Alkane

and differ by CH-2 unit this are homolouges

4)Same number of H2 atoms are here...Propyne(C3H4) and Ethene(C2H4) are unsaturated carbon chain as they aren't Alkanes [with formula Cn H(2n+2)]

Hope it helps...