1- Among the compounds H3CCH3, H2C=CH2, and HCCH, the compound with the stronges

Question

1-

Among the compounds H3CCH3, H2C=CH2, and HCCH, the compound with the strongest carbon-carbon bond is ________, and the compound with the longest carbon-carbon bond is ________.

4-

Using only the elements Ba, Cl, and/or P, give the formula of a compound having largely ionic bonds.

Express your answer as a chemical formula.

5-

Of the bonds C-C, C-N, C-O, and C-F, the bond that is most polar is ________.

8-

Ionic compounds consist of a single three-dimensional network of ions that are attracted to one another by strong ________ and usually exist in the solid state at room temperature, whereas covalent compounds consist of molecules that are attracted to one another by weak ________ and can exist in gaseous, liquid, or solid state at room temperature.

25-

Based on formal charges, the P-O bond order in POCl3 is expected to be ________.

Explanation / Answer

Ans 1 : CH triple bond CH (Ethyne) ; H3C-CH3 (Ethane)

Bond order is directly proportional to the bond strength and inversely proportional to the length of the bond.

Since the ethyne molecule has bond order 3 , it is has the strongest Carbon - carbon bond as well as shortest bond.

Whereas ethane has bond order 1 , so it has the weakest and the longest carbon - carbon bond.

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