Choose the one alternative that beat completes the statement or answers the ques

Question

Choose the one alternative that beat completes the statement or answers the question. sOf the following substances, only _____has London dispersion forces as Its only intermolecular force. NH_3 H_2S CH_3OH CH_4 HCl Of the following substance _____has the highest boiling point. Kr H_2) CO_2 CH_4 NH_3 Of the following _____has the highest boiling point. Br_2 H_2 N_2 cl_2 O_2 In which of the following molecules is hydrogen bonding likely to be the most significant component of the total intermolecular forces? CH_4 C_5H_11OH CO_2 C_6H_13NH_2 CH_3OH Which of the following has dispersion forces as its only intermolecular force? CH_4 CH_3CI C_6H_13NH_12 NaCI Hcl When NaCI dissolves in water, aqueous Na^+ and Cl^- ions result. The force of attraction that exists between Na^+ and H_2O is called a(n) _____interaction. ion-ion London dispersion force dipole-dipole ion-dipole hydrogen bonding Which one of the following derivatives of ethane has the highest boiling point? C_2H_6 C_2l_6 C_2CI_6 C_2Br_6 C_2F_6

Explanation / Answer

1. D

CH4 is a gas and it is symetric molecule. Among CH4 molecules london forces are present.

2. B . H2O

Among the H2O molecules intermolecular hydrogen bonds are present . So it has high boiling point due to inter molecular hydrogen bond.

3. A. Br2

4. B, D, E

5. C.C6H13NH2 due inter molecular hydrogen bond

6. D.

7. B C2I6

C2I6 has highest molecular mass. So it has highest boiling point.

6.

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