20下列各组烷烃,属于碳链异构的是( )。 -题库考试答案搜索网

20下列各组烷烃,属于碳链异构的是( )。

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2021-09-03 17:11

A、CH3-CH(CH3)-CH2-CH2-CH3与CH3-CH2-CH(CH3)-CH2-CH3
B、CH3-CH2-CH2-CH3与CH3-CH2-CH(CH3)2
C、CH3-CH2-CH(CH2CH3)-CH3与CH3-CH(CH2CH3)-CH2-CH3
D、CH3-CH(CH3)-CH2-CH2-CH3与CH3-CH2-CH2-CH(CH3)2
E、CH3-CH2-CH2-CH(CH3)-CH3与CH3-CH(CH3)-CH2-CH2-CH3

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正确答案

A@#@C@#@C@#@C@#@C@#@C@#@C@#@C@#@C@#@C@#@C@#@C@#@C

试题解析

标签：川北医学院护理学医用基础化学

感兴趣题目

翻译：With Average or With Particular Average（WA or WPA）（）

催化重整过程所发生的化学反应主要有（）环烷烃异构化脱氢形成芳烃、烷烃脱氢芳构化、正构烷烃的异构化和加氢裂化等反应。

异构烷烃的催化裂化反应速度比正构烷烃（），异构烷烃的热裂化反应速度比正构烷烃（）。

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。