A bond between two sugar molecules is formed by which of the following types of reactions?
oxidation-reduction
condensation
single-replacement
double-replacement
condensation
The bond between two sugar molecules is formed by a condensation reaction. A condensation reaction is a type of chemical reaction where two molecules combine to form a larger molecule, and in the process, a smaller molecule, such as water, is produced as a byproduct. In the case of sugar molecules, the condensation reaction occurs between the hydroxyl (-OH) groups of the two sugar molecules, resulting in the formation of a covalent bond and the release of a molecule of water. This process is also known as dehydration synthesis.
To determine this, you can use your knowledge of the different types of chemical reactions and the specific characteristics of each one. In this case, oxidation-reduction, single-replacement, and double-replacement reactions are not appropriate for the formation of a bond between two sugar molecules. Oxidation-reduction reactions involve the transfer of electrons between reactants, single-replacement reactions involve the replacement of one element by another, and double-replacement reactions involve the exchange of ions between two compounds. Condensation reactions, however, involve the combination of two molecules and the release of a small molecule as a byproduct, which is the case when two sugar molecules bond together.