Question

19.) Oxidation always involves atoms or A) loss, gain, loss B) gain, loss, gain C) loss, loss, gain D) gain, gain, loss of electrons and may involve _ of oxygen of hydrogen atoms 20.) When an organic molecule loses hydrogen atoms it is said to be: A) reduced B) oxidized C) both oxidized and reduced D) neither oxidized nor reduced 21.) When a substance is oxidized, it is called a(n): A) oxidizing agent B) reducing agent c) both an oxidizing and a reducing agent D) neither an oxidizing nor a reducing agent 22.) Which of the following is a polysaccharide? A) Glucose B) Sucrose C) Starch D) Maltose 23.) Which of the following is a disaccharide? A) Glucose B) Sucrose C) Starch D) Mannose 24) Which of the following is a monosaccharide A) Mannose B) Sucrose C) Starch D) Maltose 25.) How many monosaccharides are connected to each other in an oligosaccharide? A) B) 2 C) 3-9 D) more than 9

Answer 1

19 | oxidation always involves loss of electron and may involve gain oxigen atoms -Hor loss of hydrogen atoms: I correct option :- loss; gain , Loss T CA)

2011 when an organic moleccele loses hydrogens atoms it is said to be "B) oxidized. oxidized it is when called a substance is a A Reducing agent Redescina agent : Reducing agent is I losing electrons, it is said to be have been oxidized . 22 which of the following polly saccharite ? is al c) starch.

polysaccharite :- These are polymeric - carbohydrates molecules composed of long crains of mono- - sacchari de units bound together. a 241 which of the following is - mono saccharito ? A) mannose mono saccharide's :- They can not furthur hydrolyzed to simple compounds . These are simple sugar's. - How many monosaccharite's are connected to each other in an oligosaccharite? c) 3-9