Question

Carbohydrates, fats, proteins: These organic molecules ALL have this element in common. This element can form multiple bonds, and it bonds with other elements as well as with itself. This element is
A)
calcium.
B)
carbon.
C)
helium.
D)
hydrogen.

Answer 1

Answer:

The correct answer would be B) carbon.

All organic compounds such as carbohydrates, fats, and proteins contain carbon as a common element.

Carbon is an element which has 6 as its atomic number and 4 as its valency that is, it can form four bonds at a time.

It can form long chains of itself which are sealed off with the help of hydrogen and thus form a hydrocarbon which is an important compound on earth.

Answer 2

I think the answer is probably B. All the organic molecules have carbon. Carbon can form single, double and triple bonds with itself. It can also form bonds with other elements. Hope i helped.