Benzoic acid dissolved In benzene shows double of its molecular mass.Give reasons.

Assertion : The observed molar mass of acetic acid in benzene is more than the normal molar mass of acetic acid. Reason : Molecules of acetic acid dimerise in benzene due to hydrogen bonding. a)If both (A) and (R) are correct and (R) is the correct explanation of(A). b)If both (A) and (R) are correct, but (R) is not the correct explanation of (A). c)If (A) is correct, but (R) is incorrect. d)If both (A) and (R) are incorrect.

Benzoic acid is a monobasic acid. When '1.22' of its pure sample are dissolved is water and titrated against base '50 mL' of '0.2 M' NaOH are used up. Calculate the molar mass of benzoic acid.

Acetic acid dimerizes when dissolved in benzene. As a result boiling point of the solution rises by 0.36^(@)C , when 100 g of benzene is mixed with ''X'' g of acetic acid. In this solution, if experimentally measured ,measured molecular weight of acetic acid is,117.8 and molar elevation constant of benzene is I 2.57 K kg mol^(-1) what is the weight and degree of dissociation (in %) of acid in benzene?

Boron halides can act as Lewis acids. Give reason.

Assertion: van't Hoff factor for benzoic acid in benzene is less than one Reason: Benzoic acid behave as a weak electrolytein benzene.

Assertion : Saicylic acid is stronger than m and p-hydroxy benzoic acid. Reason : Carboxylate ion is stabilized by intramolecular H-bonding.

Proteins are made up of alpha - amino acids. They are actually polypeptides having high molecular mass. Give one example each for neutral, acidic and basic alpha - amino acids.

1.00g of a non-electrolyte solute dissolved in 50g of benzene lowered the freezing point of benzene by 0.40K. Freezing point depression constant of benzene is 5.12K g//mol . Find the molar mass of solute. .