BIOLOGY
NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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4
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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). However, structures that are more complex are made using carbon.
Detailed explanation-2: -Atoms bond by sharing electrons. In a typical bond two electrons are shared, one from each of the atoms involved. Carbon has four such sharable electrons of its own, so it tends to form four bonds to other atoms.
Detailed explanation-3: -For making four bonds, eight electrons would have to be squeezed in and such a system is highly unstable energetically. So, C-C quadruple bonds do not exist.