Question

question 10
dehydration synthesis (condensation) involves the:
a addition of a -oh group to form a larger molecule
b removal of a na*, and cl from molecules to form water
c addition of a water molecule form a larger molecule
d removal of -oh, and h* from molecules to form water

Explanation:

Dehydration synthesis, also known as condensation, is a chemical reaction where two molecules are joined together to form a larger molecule. During this process, a water molecule ($\ce{H2O}$) is removed. One molecule donates a hydroxyl group ($\ce{-OH}$) and the other donates a hydrogen ion ($\ce{H+}$), which combine to form water ($\ce{H2O}$).

• Option A: Dehydration synthesis does not involve the addition of a $\ce{-OH}$ group. Instead, it involves the removal of components to form water.
• Option B: Dehydration synthesis is not about the removal of $\ce{Na+}$ and $\ce{Cl-}$. It is about the combination of organic molecules with the loss of $\ce{H2O}$.
• Option C: Dehydration synthesis is the removal (not addition) of water during the formation of a larger molecule from smaller ones.
• Option D: This is correct as in dehydration synthesis, $\ce{-OH}$ from one molecule and $\ce{H+}$ from another molecule are removed to form water while the two molecules bond together.

Answer:

D. removal of $\ce{-OH}$, and $\ce{H+}$ from molecules to form water