题目内容：

几道英文的化学题.
1.What type of attraction exists between PF3 molecules?
a) H-bonds b) Dispersion c) Dipole-Dipole d) Ionic
2.What is the shape of the CS2 molecule?
a) Linear b) Tetrahedral c) Bent d) Trigonal Pyramidal
3.What type of attraction exists between CS2 molecules?
a) H-bonds b) Dispersion c) Dipole-Dipole d) Ionic
4.What compound would have the highest melting point?
a) diamond b) sodium iodide c) ammonia d) nitrogen
5.What type of attraction exists between SiH4 molecules?
a) H-bonds b) Dispersion c) Dipole-Dipole d) Ionic

优质解答

1,should be C; 2 should be a; 3 should be b; 4 should be a; 5 should be b