皮皮学,免费搜题
登录
搜题
【简答题】
有机物X含有碳、氢、氧三种元素。 (1)探究X与钠反应产生气体的成分。 ①X与钠反应产生的气体具有可燃性。将气体点燃,把一干燥的小烧杯罩在火焰上,片刻在烧杯壁上出现液滴,迅速倒转烧杯,向烧杯中加入少量澄清石灰水,未见浑浊。则X与钠反应产生的气体为________。 ②根据苯、乙烷等碳氢化合物不能与钠反应产生上述气体这一事实,可得出X分子里有不同分子里的氢原子存在。即有机物X除含有碳氢键之外,还有的化学键是________键。 (2)工业上, X可由乙烯与水反应制得,则X的分子式是________。 X分子含有的官能团的名称是________。写出X发生催化氧化反应的化学方程式______________。 X能被酸性高锰酸钾或重铬酸钾氧化为生活中的另一种重要的有机化合物Y,X与Y发生反应的化学方程式是________________。为了提高该反应的反应速率,可采取的措施是_______________。可用某溶液除去产品中混有的杂质,写出除杂过程发生反应的化学反应方程式______________________。
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【多选题】what are the three main types of Chinese Painting?
A.
birds and flowers
B.
Chinese landscape figure
C.
painting
【简答题】论述中医理论体系的 整体观念
【简答题】A—pencil sketch B—pen drawing C—landscape painting D—engraving E—Chinese ink painting F—woodcut G—poster H—caricature I—traditional Chinese painting J—charcoal K—mural painting L—portrait M—modem pain...
【单选题】“中国画”的英文是( )。
A.
Chinese painting
B.
Chinese oil painting
C.
Chinese painting utensil
D.
Chinese handicraft
【多选题】决胜全面建成小康社会伟大胜利要打好三大攻坚战,即
A.
要突出抓重点、补短板、强弱项,
B.
坚决打好防范化解重大风险攻坚战
C.
坚决打好精准脱贫攻坚战。
D.
坚决打好污染防治攻坚战。
【单选题】Which one is not the style of Chinese painting?
A.
Landscape painting
B.
Nude painting
C.
Figure painting
D.
Flowers and birds painting
【单选题】About Chinese traditional painting, which of the following is NOT true?
A.
The characteristics of Chinese painting are closely related to the nature of the medium.
B.
Chinese painting is inseparably associated with literature and other arts such as poetry and calligraphy.
C.
The likeness in Chinese paintings was achieved in much the same way as Western paintings.
D.
Chinese painting is symbolic, for everything that is painted reflects some aspect of totality of symbols of a more specific kind.
【单选题】About Chinese traditional painting, which of the following is NOT true?
A.
The characteristics of Chinese painting are closely related to the nature of the medium.
B.
The likeness in Chinese paintings was achieved in much the same way as Western paintings.
C.
Chinese painting is inseparably associated with literature and other arts such as poetry and calligraphy.
D.
Chinese painting is symbolic, for everything that is painted reflects some aspect of totality of symbols of a more specific kind.
【判断题】外汇实盘交易的货币都是可自由兑换的货币。( )
A.
正确
B.
错误
【判断题】接触轨膨胀接头间隙值的调整与环境温度有关。( )
A.
正确
B.
错误
相关题目: