Biomolecules — Chemistry STD 12 — Question

Find out the correct pair :

The reagent used to distinguish between acetaldehyde and benzaldehyde is ____________.

Assertion(A): Aldehydes and ketones have high high boiling point as compared to hydrocarbon and ether of comparable molecular mass.
Reason (R): It is due to weak molecular association in aldehydes and ketones arising out of the dipole – dipole interactions.

Absorption and adsorption if simultaneously occurs, it is called ……………

Consider the following statement
(I) The relative arrangement of amino acids in the polypeptide chain called the secondary structure of protein.
(ii) α – Helix and β – strands are two most common sub structures formed by proteins.
(iii) α – Helix and β – strands further folds to form the three dimensional arrangement in tertiary structure of proteins.
Which of the above statement is / are correct?

During nucleophilic addition reaction, the hybridisation of carbon changes from

Name the product formed Acetaldehyde reacts with Zinc amalgam and conc.HCl?

Which one of the following is a protein hormone?