Biomolecules

ATP has phosphate group, PO? ³?
So x + 4 (-2) = - 3 or x = + 5

Vitamin B₁₂ is not water soluble chemical.

Ketones are reduced into hydrocarbons using Zn – Hg/HCl (Clemmenson reduction).

Tyndall effect is exhibited by colloidal solutions.
Starch solution is a colloidal solution

Fat-soluble vitamins are stored in our body for a relatively longer duration as compared to water-soluble vitamins.

• Vitamin B and C are water-soluble. (Thiamine is vitamin B1, while ascorbic acid is vitamin C).
• Vitamin A and vitamin D are fat-soluble, so they are stored in our body for a relatively longer duration.

In proteins, the secondary structure (such as α-helices and β-sheets) is stabilized by hydrogen bonds formed between the carbonyl oxygen of one peptide bond and the amide hydrogen of another.

Deficiency of vitamin K causes increase in blood clotting time.

CH? (methane) is produced / generated from paddy fields. And methane leads to both global warming and photochemical smog.

CO? is used in photosynthesis, acid rain etc. but methane is not consumed.

So methane is a stronger global warming gas than CO?

Linear: N? (azide ion)

Bent-shape: O? (ozone), NO? (nitrite ion), Cl? O (dichlorine monoxide)

Kindly consider the following figure