1.-5. Match each pair of compounds on the left and its corresponding melting poi

Question

1.-5. Match each pair of compounds on the left and its corresponding melting points (m.p.) or boiling points (b.p.) in °C to a major reason, given on the right, why the physical property increases. Answers may be repeated.

CH3CH2PHCH3 (m.p. -160), CH3P(CH3)2 (m.p. -85)                                               a. more weight

CH3N(CH3)2 (m.p. -117), CH3P(CH3)2 (m.p. -85)                                         b. more van der Waal interactions

CH3CH2NHCH3 (b.p. 36), CH3(CH2)2NH2 (b.p. 48)                                                c. more rotational symmetry

(CH3)2CHNH2 (b.p. 33), CH3CH2NHCH3 (b.p. 36)                                     d. more polar bonds

CH3(CH2)2NH2 (b.p. 48), CH3(CH2)2OH (b.p. 97)                                     e. more hydrogen bonds

Explanation / Answer

1)more rotaonal symmetry

2)more molecular weight

3)more H-bonds

4)more rotational symmetry

5)more polarity

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.