The homologous series of alkynes follows the general molecular formula CnH2n-2.

Step 1: Identify the number of carbon atoms. In this case, the 5th member of the series would have 5 carbon atoms (n=5).

Step 2: Substitute the number of carbon atoms into the formula.

Hence, H = 2n - 2 = 2*5 - 2 = 8

Step 3: Combine the number of carbon and hydrogen atoms to get the molecular formula.

Therefore, the molecular formula of the 5th member of the alkyne homologous series is C5H8.

So, the correct answer is A: C5H8.

Question

The homologous series of alkynes follows the general molecular formula CnH2n-2.

Step 1: Identify the number of carbon atoms. In this case, the 5th member of the series would have 5 carbon atoms (n=5).

Step 2: Substitute the number of carbon atoms into the formula.

Hence, H = 2n - 2 = 2*5 - 2 = 8

Step 3: Combine the number of carbon and hydrogen atoms to get the molecular formula.

Therefore, the molecular formula of the 5th member of the alkyne homologous series is C5H8.

So, the correct answer is A: C5H8.

Knowee AI · Accepted Answer

The homologous series of alkynes follows the general molecular formula CnH2n-2.

Step 1: Identify the number of carbon atoms. In this case, the 5th member of the series would have 5 carbon atoms (n=5).

Step 2: Substitute the number of carbon atoms into the formula.

Hence, H = 2n - 2 = 2*5 - 2 = 8

Step 3: Combine the number of carbon and hydrogen atoms to get the molecular formula.

Therefore, the molecular formula of the 5th member of the alkyne homologous series is C5H8.

So, the correct answer is A: C5H8.

What is the molecular formula of 5th member of alkyne Homologous series :-A C5H8 B C6H10 C C7H12 D C6H12