AP BIOLOGY

BIOCHEMISTRY

POLAR AND NONPOLAR MOLECULES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
NaCl is made up of sodium (Na) ion and chlorine (Cl) ion. Which of the ff. types of bond is described by the compound?
A
ionic bond
B
covalent bond
C
polar covalent bond
D
nonpolar covalent bond
Explanation: 

Detailed explanation-1: -When the transfer of electrons occurs, an electrostatic attraction between the two ions of opposite charge takes place and an ionic bond is formed. A salt such as sodium chloride (NaCl) is a good example of a molecule with ionic bonding (see Figure 3-3).

Detailed explanation-2: -Ionic bonds, like those in table salt (NaCl), are due to electrostatic attractive forces between their positive (Na+) and negative charged (Cl-) ions. In unit two, we compared atoms to puppies and electrons to bones in our analogy of how bonding works.

Detailed explanation-3: -The type of bond in Sodium chloride is ionic bond. An ionic bond is formed by the electrostatic attraction between positive and negative ions.

Detailed explanation-4: -Hence, sodium chloride is an ionic compound and not covalent.

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