11. What function does phosphoric acid have in a dehydrogenation reaction? a. It

Question

11. What function does phosphoric acid have in a dehydrogenation reaction?

a. It remove a hydrogen from the –OH group

b. It donates a proton to the –OH group

c. It remove the –OH group in one step

d. It backside attacks the –OH group

12. Which of the following would result in an SN1 reaction?

a. A tertiary alkyl halide

b. Polar protic solvent

c. Weak nucleophile

13. Why is saturated sodium chloride solution (also known as brine) used?

a. To remove undissolved impurities

b. To remove water from the organic layer

c. To turn compounds into their salt form

d. To separate acids and bases

Explanation / Answer

Ans 11 : a) it remove a hydrogen from the -OH group

The dehydrogenation reactions are the ones that remove hydrogen from the reactant molecule. Since phosphoric acid is used for this purpose , it will remove the hydrogen atom from the -OH group of the compound molecule.

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