问题:

下表中,对陈述I、Ⅱ的正确性及其有无因果关系的判断不正确的是
[     ]
                      陈述Ⅰ                                           陈述Ⅱ                                                          判断
A.干冰升华时吸收大量的热                        干冰可用于人工降雨                                    Ⅰ对;Ⅱ对;有
B.硫酸在水溶液中能解离出H +          稀释时应将水慢慢倒入浓硫酸中并不断搅拌           Ⅰ对;Ⅱ错;无
C.铁丝生锈时消耗空气中的氧气                 铁粉可作除氧剂                                           Ⅰ对;Ⅱ对;有
D.活性炭能吸附Ca 2+、Mg 2+离子               活性炭可用于水的净化                                 Ⅰ对;Ⅱ对;有

可能感兴趣的题目: