NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why is carbon able to be the building block of organic compounds?
A
able to make 4 bonds
B
light in atomic weight
C
large
D
non-reactive element
Explanation: 

Detailed explanation-1: -Carbon contains four electrons in its outer shell. Therefore, it can form four covalent bonds with other atoms or molecules. The simplest organic carbon molecule is methane (CH4), in which four hydrogen atoms bind to a carbon atom (Figure 1).

Detailed explanation-2: -Because carbon has four electrons in its valence shell, it is able to form four covalent bonds with other atoms.

Detailed explanation-3: -Carbon is an essential building block of organic molecules. This is because it has a unique molecular structure that allows it to form many strong bonds with itself and other crucial elements. It is typically combined with hydrogen to form hydrocarbons.

Detailed explanation-4: -Hi, There is no 4 bond formed between carbon because of the carbon electron orbitals. Since it has 4 valence electrons, it needs 4 more to electrons to fill its outer energy level. It does so by forming covalent bonds with another element, in order to complete its Octet rule.

Detailed explanation-5: -Carbon is the only element that can form so many different compounds because each carbon atom can form four chemical bonds to other atoms and because the carbon atom is just the right, small size to fit in comfortably as parts of very large molecules. This property is called the catenation.

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