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(B) Lipids are organic compounds that are insoluble in water but soluble in organic solvents.They consist of long hydrocarbon chains containing $C$,$H

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Lipids

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(B) Lipids are organic compounds that are insoluble in water but soluble in organic solvents.They consist of long hydrocarbon chains containing $C$,$H$,and $O$.Unlike carbohydrates,where the ratio of hydrogen to oxygen is typically $2:1$,lipids have a much higher proportion of hydrogen relative to oxygen,resulting in a ratio significantly greater than $2:1$.They are greasy in consistency and serve as important energy storage molecules and structural components of cell membranes.

Column-$I$	Column-$II$
$(a)$ Fat	$(i)$ All fatty acids are saturated and long-chained
$(b)$ Oil	$(ii)$ All fatty acids are unsaturated and short or long-chained
$(c)$ Wax	$(iii)$ Alcohol molecule is monohydroxy alcohol
$(d)$ Complex lipid	$(iv)$ Lipid plus non-lipid component

Group of substances with greasy consistency and a long chain of hydrocarbons containing $C$,$H$,and $O$,where the hydrogen to oxygen ratio is greater than $2:1$,are called:

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