Question

Multiple Choice please answer all 3 no need to go in-depth

Hydrophobic substances such as vegetable oil are

	a.	nonpolar substances that repel water molecules.
	b.	nonpolar substances that have an attraction for water molecules
	c.	polar substances that repel water molecules
	d.	polar substances that have an affinity for water

1. Sulfur is in the same column of the periodic table as oxygen, but has electronegativity similar to carbon. Compared to water molecules, molecules of H2S will

	a.	have greater cohesion to other molecules of H2S
	b.	have a greater tendency to form hydrogen bonds with each other
	c.	have a higher capacity to absorb heat for the same change in temperature
	d.	not form hydrogen bonds with each other

Which of the functional groups below acts most like an acid in water?

amino

carbonyl

carboxyl

Hydroxy

Hydrophobic substances such as vegetable oil are

	a.	nonpolar substances that repel water molecules.
	b.	nonpolar substances that have an attraction for water molecules
	c.	polar substances that repel water molecules
	d.	polar substances that have an affinity for water

Answer 1

1)Hydrophobic substances such as vegetable oil are nonpolar substances that repel water molecule.

Hence , a is the correct option.

2)Sulfur is in the same column of the periodic table as oxygen , but has electronegativity as similar to carbon . Compared to water molecule , molecules of H2S will -not form hydrogen bonds with each other.

Hence, option d is correct.

3) The functional group which acts most like an acid in water is -carboxyl

Hence ,option c is correct.

NOTE- EXPLANATION IS NOT GIVEN AS YOU ASKED NOT TO GO IN DEPTH.

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