3¡¢ÏÂÁз´Ó¦ÖУ¬ÊôÓÚ·ÅÈÈ·´Ó¦µÄÊÇ                                      

 A£®ÂÁ·ÛÓëÑõ»¯ÌúµÄ·´Ó¦                          B£®ÂÈ»¯ï§¾§ÌåÓëBa(OH)₂·8H₂OµÄ·´Ó¦

 C£®ÂÈËá¼ØµÄ·Ö½â·´Ó¦                            D£®ÑÎÀàµÄË®½â·´Ó¦

4¡¢ÏÂÁÐʵÑéËùÓõÄÊÔÖ½²»ÄÜÔ¤ÏÈÓÃÕôÁóË®ÈóʪµÄÊÇ

  A£®ÓÃÆ·ºìÊÔÖ½¼ìÑéSO₂                           B£®Óõí·Ûµâ»¯¼ØÊÔÖ½¼ìÑéCl₂

  C£®ÓúìɫʯÈïÊÔÖ½¼ìÑéNH₃                       D£®ÓÃpHÊÔÖ½²â¶¨Ä³ÈÜÒºµÄpH