第一章 单元测试

1、单选题:
When comparing titration, use NaOH standard solution to titrate HCl. If the titration speed of NaOH is too fast and it is read immediately at the end point, the concentration of HCI solution will be ( ).
选项:
A:low
B:may be high or low
C:no influence
D:high
答案: 【high

第二章 单元测试

1、单选题:
Molecules without intermolecular or intramolecular hydrogen bonds are ( )
选项:
A:HNO3
B:CF3H
C:p-hydroxybenzoic acid
D:NH3
答案: 【p-hydroxybenzoic acid