Answer:
a. alkyne
b. alkane
c. alkyne
d. alkene
Explanation:
The general formula for each class of compound is given below
Alkane: 
Alkene: 
Alkyne:
(assuming single multiple bonds)
Now let us classify according to the above formulas:
a. It has two hydrogen atoms less than the two times of carbon atoms hence, it's alkyne
b. It has two hydrogen atoms more than the two times of carbon atoms hence, it's alkane
c. It has two hydrogen atoms less than the two times of carbon atoms hence, it's alkyne
d. It has hydrogen atoms two times of carbon atoms hence, it's alkene
Answer: The number of moles of
produced are, 0.287 moles.
Explanation : Given,
Mass of
= 14.9 g
Molar mass of
= 32 g/mol
First we have to calculate the moles of 


Now we have to calculate the moles of 
The balanced chemical equation is:

From the reaction, we conclude that
As, 13 mole of
react to give 8 moles of 
So, 0.466 mole of
react to give
mole of 
Therefore, the number of moles of
produced are, 0.287 moles.
The answer I’m sure it’s c