單項(xiàng)選擇題THF在0.7MPa下的沸點(diǎn)()℃,THF/H2O在0.7MPa下沸點(diǎn)()℃

A.148,134
B.148,127
C.134,127
D.148,140


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1.單項(xiàng)選擇題THF在常壓下沸點(diǎn)(),THF/H2O在常壓下沸點(diǎn)()

A.60,56
B.56,67
C.67,63.8
D.67,56

3.單項(xiàng)選擇題THF的分子式是()

A.C5H8O
B.CH2OH
C.C4H8O
D.CH3CH2COCH3

4.單項(xiàng)選擇題THF在空氣中的爆炸極限為是()

A.1.8-11.8
B.4.1-74.1
C.2.8-62.8
D.1.1-11.1

5.單項(xiàng)選擇題D-A009-2用來(lái)儲(chǔ)藏含水量多少的THF()

A.0.5%
B.10%
C.5%
D.1%