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CBSE Gujarat Board Haryana Board

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Class 10 Class 12
Write a brief note on hydrogenation.

Hydrogenation is the process where hydrogen atoms bind to the double bond of a compound, facilitating its conversion to a single bond, in the presence of a catalyst.  The process is commonly employed to reduce or saturate organic compounds. In this process, triglycerides are treated with hydrogen under pressure in the presence of Ni at 180°C.

What is the percentage of nucleic acids in cells ?

5 - 7 percent

What are major elements of a cell ?

Carbon, hydrogen, oxygen and nitrogen are the major elements of a cell.

Give the names of two monosaccharide sugars.

Fructose and glucose are two monosaccharides

What is the general formula of carbohydrates ?

The carbohydrate has a general formula - CnH2nOn Or (CH2O)n.

Name one monosaccharide which provides energy ?