Chemistry, 07.10.2019 15:00 Nell3856

Which of the following is a disaccharide?
a. glucose
b. sucrose
c. fructose
d. galactose

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The correct answer is B - Sucrose. A disaccharide is said to be two monosaccharides joined into one, which happens through a chemical process known as dehydration synthesis or condensation reaction during which a molecule of water is lost. Sucrose is disaccharide that is formed from the combination of two monomers namely glucose and fructose. Generally, disaccharides are sweet when ingested and they are water soluble. They are placed in the category of complex sugars because they consist of two simple sugars combined.

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most historians agree that gabriel mouton, the vicar of st. paul’s church in lyons, france, is the “founding father” of the metric system. he proposed a decimal system of measurement in 1670. mouton based it on the length of one minute of arc of a great circle of the earth (now called a nautical mile, 1852 meters). he also proposed the swing-length of a pendulum with a frequency of one beat per second as the unit of length (about 25 cm). a pendulum beating with this length would have been fairly easy to produce, thus facilitating the widespread distribution of uniform standards. over the years, his work was revised, improved, and extended by a number of french scientists.

the political sponsor of weights and measures reform in the french revolutionary national assembly was the bishop of autun, better known as talleyrand. under his auspices, the french academy appointed several committees to carry out the work of developing a usable system of weights and measures for france. one of the committees recommended a decimalized measurement system based upon a length equal to one ten-millionth of the length of a quadrant of the earth’s meridian (i.e., one ten-millionth of the distance between the equator and the north pole).

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Hbr dissociates to form h+ and br-ca(oh)2 dissociates to form ca2+ and 2oh-the h+ and oh- react to form waterassuming the reactants are dissolved in water, the net reaction is h+ + oh- —> h2oif you’re asked to show all components of the reaction, the complete reaction is 2hbr + ca(oh)2 —> cabr2 + 2h2o

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Which of the following is a disaccharide?
a. glucose
b. sucrose
c. fructose

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