某同学用下列装置制备并检验Cl2的性质．下列说法正确的是（ ）
A．Ⅰ图中：如果MnO2过量，浓盐酸就可全部消耗
B．Ⅱ图中：湿润的有色布条能褪色，将硫酸溶液滴入烧杯中，至溶液显酸性，结果有Cl2生成
C．Ⅲ图中：生成蓝色的烟
D．Ⅳ图中：量筒中发生了加成反应
A、Ⅰ图中：如果MnO2过量，浓盐酸随着反应进行，浓度减小到一定程度，不再与二氧化锰继续反应，所以盐酸不能全部消耗，故A错误；
B、Ⅱ图中：湿润的有色布条能褪色，是因为氯气与水反应生成盐酸和次氯酸，次氯酸具有漂白性，使有色布条褪色，剩余氯气通入到盛氢氧化钠溶液的烧杯中发生反应为，Cl2+2NaOH=NaCl+NaClO+H2O，将硫酸溶液滴入烧杯中，至溶液显酸性，氯化钠和次氯酸钠会发生氧化还原反应，离子方程式为Cl-+ClO-+H+=Cl2↑+H2O，所以结果有Cl2生成，故B正确；
C、Ⅲ图中：铜在氯气中燃烧产生棕色的烟，故C错误；
D、甲烷和氯气在光照条件下发生取代反应，特征是有出有进，故D错误；
故选B．
Growing older is unavoidable while growing up is optional. These words have been passed on in the loving __ of Rose. On the first day of school our professor challenged us to get to know someone, so I __ to find a little old lady looking at me with a smile. She said， "Hi,handsome! My name is Rose. I'm eighty-seven years old. Can I give you a _? " I laughed and _ responded, then followed a giant squeeze. “_ are you in college at such an innocent age?” I asked. "I'm here to meet a rich husband, get married, have a couple of kids..." I was __ what it was that motivated her to be taking on this _ at her age. “ I always dreamed of having a college education and now I _ it!” Later, we became friends. Rose became a campus celebrity and she easily made friends _ she went. On one _ Rose was invited to speak at our football banquet. Her prepared cards dropped before she _ the speech. A little _ , she simply _ her throat and began," We do not stop playing _ we are old; we grow old because we stop playing. There are certain secrets to stay _ , being happy and achieving success. You've got to have a dream. When you _ your dreams, you die.”… At the end of the year Rose finished her college education. One week after graduation Rose died _ in her sleep. Over two thousand college students _ her funeral in honor of the wonderful woman who taught by __ that it's never too late to be all you can possibly be. Anybody can grow older, which doesn't _ any talent or ability. The key is to grow up by always finding opportunities in change.
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