Which statement is true about a molecule with the molecular formula C10H20, that when subjected to catalytic hydrogenation there is no consumption of hydrogen?

a. The molecule has no degrees of unsaturation.
b. There is one degree of unsaturation, which happens to be a pi-bond.
c. There are two degrees of unsaturation where one is a ring and the other is a pi-bond.
d. There is one degree of unsaturation, which happens to be a ring.
e. None of the above.

Compare the equilibrium constants for the systems shown in the table. which favors products the most? which favors products the least? rank these systems in order from most to least in terms of favoring products rather than reactants. d > b > a > c c > a > b > d b > c > d > a a > d > c > b

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.

Iwould appreciate if someone could me.