1) The reagent which forms crystalline osazone derivatives when treated with glucose is ..
A) Fehling solution
B) Phenyl hydrazine
C) Benedict solution
D) Hydroxyl amine
Answer Hints:......
Phenyl hydrazine reacts with glucose having -CHO group to give crystalline osazone derivative.
2) Enzymes are..
A) Proteins
B) Minerals
C) Oils
D) Fatty acids
Answer Hints:......
Enzymes are proteines.
3) Hydrolysis of sucrose is called..
A) Inhibition
B) Saponification
C) Inversion
D) Hydration
Answer Hints:......
Hydrolysis of sucrose is called inversion.
4) On heating glucose with Fehling's solution we get a precipited whose color is ..
A) Yellow
B) Red
C) Black
D) White
Answer Hints:......
On heating glucose with Fehling's solution we get a red coloured precipited.
5) Which of the following stuffs contains nitrogen ?
A) Carbohydrates
B) Fats
C) Proteins
D) None of the above.
Answer Hints:......
Proteins contain nitrogen as an essential element along with carbon,hydrogen and oxygen.
6) In nucleic acids, the sequence is..
A) Phosphate-Base-Suger
B) Suger-Base-Phosphate
C) Base-Suger-Phosphate
D) Base-Phosphate-Suger
Answer Hints:......
In nucleic acids, the sequence is Base-Suger-Phosphate.
7) The metal present in human blood is..
A) Al
B) Hg
C) Cu
D) Fe
Answer Hints:......
Fe present in human blood.
8) Which amino acid has no assymmetric carbon atom ?
A) Histidine
B) Glycine
C) alpha-Alanine
D) Threonine
Answer Hints:......
Glycine has no assymmetric carbon atom.
9) Cellulose is a polymer of ..
A) glucose
B) fructose
C) ribose
D) sucrose
Answer Hints:......
Cellulose is a polymer of glucose.
10) Molish's test is answered by ..
A) all Carbohydrates
B) sucrose
C) fructose
D) glucose
Answer Hints:......
Molish's test is answered by all Carbohydrates.
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