On being heated with a solution of sodium ethoxide in ethanol, compound a (c7h15br) yielded a mixture of two alkenes b and c, each having molecular formula c7h14. catalytic hydrogenation of the major isomer b or the minor isomer c gave only 3−ethylpentane. draw structures for compounds a, b, and c consistent with these observations.

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.

answer: cellular respiration takes in food and uses it to create atp, a chemical which the cell uses for energy. usually, this process uses oxygen, and is called aerobic respiration. it has four stages known as glycolysis, link reaction, the krebs cycle, and the electron transport chain.