_________ bonds are formed between monomers to form a polymer.

• A. Ionic bonds.
• B. Covalent bonds.
• C. Hydrogen bonds.
• D. Hydrophobic bonds.
• E. Nuclear bonds.

Answer: (B)

Verified step by step guidance

1. Understand the concept of a polymer: A polymer is a large molecule composed of repeating structural units called monomers, which are covalently bonded together.
2. Identify the types of chemical bonds: Covalent bonds involve the sharing of electron pairs between atoms, which is essential for forming stable molecules like polymers.
3. Recognize the role of covalent bonds in polymer formation: Monomers are linked together through covalent bonds to form a polymer chain. This process is known as polymerization.
4. Differentiate between bond types: Ionic bonds involve the transfer of electrons and are typically found in salts, hydrogen bonds are weak interactions between polar molecules, hydrophobic interactions occur between nonpolar molecules, and nuclear bonds are found within atomic nuclei.
5. Conclude that covalent bonds are responsible for forming polymers: Given the nature of polymerization, covalent bonds are the correct type of bond that forms between monomers to create a polymer.