A solution of I2was standardized with ascorbic acid. Using a 0.1000-g sample of pure ascorbic acid, 25.32 mL of I2 Are required to reach the starch end point. (a)What is the molarity of the iodine solution

0.02244 M is the molarity of the iodine solution.

Explanation:

Ascorbic acid + → dehydroascorbic acid +

Moles of ascorbic acid =

According to reaction, 1 mole of ascorbic acid reacts with 1 mole Then 0.0005682 mole of ascorbic caid will :

of solution

Moles of solution = 0.0005682 mol

Volume solution = 25.32 mL = 0.02532 L( 1 mL= 0.001 L)

Molarity of the solution :

0.02244 M is the molarity of the iodine solution.

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.