A) Which species in each pair has the greater polarizability? i) Br1- or I1- ? Answer (just write the symbol without the charge) = Which is the correct explanation for the answer? (give the correct letter choice) A. Br 1- because it is polar and I 1- is not. B. Br 1- because it is larger of the two ions. C. I 1- because it is larger of the two ions. D. I 1- because it is polar and Br 1- is not. E. I 1- because it has more electrons than Br 1- . ii) H2O or H2Se ? Answer = Which is the correct explanation for the answer? (give the correct letter choice) A. O is larger than Se thus H 2 O is more polarizable. B. O is smaller than O thus H 2 O is more polarizable. C. H 2 O is more polar and hence more polarizable. D. H 2 Se is less polar and hence more polarizable. E. Se is larger than O thus H 2 Se is more polarizable. B) Predict (based on polarity) whether you would be able to make a solution with the following substances then explain. i) H2O and CH3−CH3 ? Answer (write Yes or No) = Which is the explanation for the correct prediction? (give the correct letter choice) A. Both are nonpolar. B. H 2 O is polar and CH 3 -CH 3 is not. C. Both substances contain H-bonding. D. H 2 O is nonpolar and CH 3 -CH 3 is polar. E. Both are polar. ii) CH3Cl and H2Te ? Answer (write Yes or No) = Which is the explanation for the correct prediction? (give the correct letter choice) A. Both are polar. B. Both are nonpolar. C. CH 3 Cl is polar and H 2 Te is not. D. CH 3 Cl is nonpolar and H 2 Te is polar. E. Both substances contain H-bonding. C) Which of the following isomers has the lower boiling point cis-C2H2F2 or trans-C2H2F2? Explain your choice. Answer (write ONLY either cis or trans) = The correct explanation for the answer is? (give the correct letter choice) A. it is more polarizable than the other isomer. B. it is polar and thus its molecules are weakly attracted to one another. C. it is polar and thus its molecules are strongly attracted to one another. D. it is nonpolar and thus its molecules are weakly attracted to one another. E. it is nonpolar and thus its molecules are very strongly attracted to one another.
Types of Chemical Bonds
The attractive force which has the ability of holding various constituent elements like atoms, ions, molecules, etc. together in different chemical species is termed as a chemical bond. Chemical compounds are dependent on the strength of chemical bonds between its constituents. Stronger the chemical bond, more will be the stability in the chemical compounds. Hence, it can be said that bonding defines the stability of chemical compounds.
Polarizability In Organic Chemistry
Polarizability refers to the ability of an atom/molecule to distort the electron cloud of neighboring species towards itself and the process of distortion of electron cloud is known as polarization.
Coordinate Covalent Bonds
A coordinate covalent bond is also known as a dative bond, which is a type of covalent bond. It is formed between two atoms, where the two electrons required to form the bond come from the same atom resulting in a semi-polar bond. The study of coordinate covalent bond or dative bond is important to know about the special type of bonding that leads to different properties. Since covalent compounds are non-polar whereas coordinate bonds results always in polar compounds due to charge separation.
A) Which species in each pair has the greater polarizability?
i) Br1- or I1- ? Answer (just write the symbol without the charge) =
Which is the correct explanation for the answer? (give the correct letter choice)
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A. Br 1- because it is polar and I 1- is not.
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B. Br 1- because it is larger of the two ions.
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C. I 1- because it is larger of the two ions.
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D. I 1- because it is polar and Br 1- is not.
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E. I 1- because it has more electrons than Br 1- .
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ii) H2O or H2Se ? Answer =
Which is the correct explanation for the answer? (give the correct letter choice)
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A. O is larger than Se thus H 2 O is more polarizable.
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B. O is smaller than O thus H 2 O is more polarizable.
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C. H 2 O is more polar and hence more polarizable.
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D. H 2 Se is less polar and hence more polarizable.
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E. Se is larger than O thus H 2 Se is more polarizable.
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B) Predict (based on polarity) whether you would be able to make a solution with the following substances then explain.
i) H2O and CH3−CH3 ? Answer (write Yes or No) =
Which is the explanation for the correct prediction? (give the correct letter choice)
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A. Both are nonpolar.
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B. H 2 O is polar and CH 3 -CH 3 is not.
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C. Both substances contain H-bonding.
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D. H 2 O is nonpolar and CH 3 -CH 3 is polar.
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E. Both are polar.
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ii) CH3Cl and H2Te ? Answer (write Yes or No) =
Which is the explanation for the correct prediction? (give the correct letter choice)
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A. Both are polar.
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B. Both are nonpolar.
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C. CH 3 Cl is polar and H 2 Te is not.
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D. CH 3 Cl is nonpolar and H 2 Te is polar.
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E. Both substances contain H-bonding.
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C) Which of the following isomers has the lower boiling point cis-C2H2F2 or trans-C2H2F2? Explain your choice.
Answer (write ONLY either cis or trans) =
The correct explanation for the answer is? (give the correct letter choice)
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A. it is more polarizable than the other isomer.
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B. it is polar and thus its molecules are weakly attracted to one another.
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C. it is polar and thus its molecules are strongly attracted to one another.
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D. it is nonpolar and thus its molecules are weakly attracted to one another.
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E. it is nonpolar and thus its molecules are very strongly attracted to one another.
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