单选题Sulfuric acid is a（）.Aclear syrupy liquid with no odorBcolorless-to-brown liquid with a choking odor when hotCcolorless liquid with a pleasant fruity odorDwhitish liquid with a faint，pleasant odor
单选题
Sulfuric acid is a（）.
A
clear syrupy liquid with no odor
B
colorless-to-brown liquid with a choking odor when hot
C
colorless liquid with a pleasant fruity odor
D
whitish liquid with a faint，pleasant odor
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