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【多选题】
绿原酸具有如下哪些性质( )。A.
酸性
B.
碱性
C.
易溶于热水、甲醇、丙酮，于乙酸乙酯
D.
易溶于乙醚、氯仿等
E.
分子结构中有酯键，易被碱水解
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A.
Na2S2O3滴定I2
B.
I2滴定Na2S2O3
C.
HCl滴定NaOH
D.
AgNO3滴定NaCl
E.
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A.
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B.
I 2 滴定Na 2 S 2 O 3
C.
HCl滴定NaOH
D.
AgNO 3 滴定NaCl
E.
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【单选题】若用永停滴定法确定某滴定类型的化学计量点, 计量点前检流计不发生偏转, 计量点时检流计指针突然发生偏转, 属于此滴定类型的是 ( )
A.
Na2S2O3滴定I2
B.
I2滴定 Na2S2O3
C.
HCl滴定NaOH
D.
AgNO3滴定NaCl
【单选题】若用永停滴定法确定某滴定类型的化学计量点,计量点前检流计指针不发生偏转,计量点时检流计指针突然发生偏转,属于此滴定类型的是
A.
Na 2 S 2 O 3 滴定 I 2
B.
I 2 滴定 Na 2 S 2 O 3
C.
HCl 滴定 NaOH
D.
AgNO 3 滴定 NaCl
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A.
Her overcoat is as stylish as Jill's.
B.
Jill missed her class last week.
C.
Jill wore the overcoat last week.
D.
She is in the same class as the man.
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