Biosphere. it is a place where plant's and animals live together and they r interconnected to eachother
Answer:
E) None of these
Explanation:
For this question, we must remember the definition of a <u>chiral carbon</u>. In the chiral carbons, we have <u>four different groups</u> around the carbon.
So, an achiral molecule would be a molecule that does not have chiral carbons. That is, in an achiral molecule in all carbons we have at least one repeating group.
In all the molecules, which we have in the question, we have absolute configuration. That is, we have chiral carbons. In molecule A we have two chiral carbons (R and R), in molecule b we have two chiral carbons (R and S), in molecule c we have two chiral carbons (S and S) and in molecule d we have two chiral carbons (R and S). <u>Therefore in all molecules, we have chiral carbons.
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Now, if we analyze molecules a and c, we have a <u>plane of symmetry</u>. If we have a plane of symmetry, even though there are chiral carbons, there will be <u>no optical activity</u>. That is, these molecules do not have the ability to deflect polarized light despite having chiral carbons. Therefore molecules a and c are <u>meso compounds</u>.
<em>But optical activity is not related to chirality.</em>
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See figure 1 to further explanations
I hope it helps!
Answer:
Answer to the following question is as follows;
Explanation:
Alkynes' vapour pressure and normal boiling points are altered when chain length grows, since vapour pressure rises while boiling point falls.
Vapour pressure always include pressure entered by vapour with its condensed phase, pressure include molecules force of attraction include vapour