Science (English Medium) इयत्ता १२ - CBSE Question Bank Solutions for Chemistry

Acidity of phenol is due to ____________.

The ionization constant of phenol is higher than that of ethanol because ____________.

Which of the following carbohydrates are branched polymers of glucose?

(i) Amylose

(ii) Amylopectin

(iii) Cellulose

(iv) Glycogen

In the following compounds:

The order of acidity is

In CH₃CH₂OH, the bond that undergoes heterolytical change most readily is ____________.

Phenol reacts with Br₂ in CS₂ at low temperature to give ____________.

Strength of acidity is in order:

Which of the following compounds is most acidic?

In which pair is most efficient packing is present?

'A' is:

Which one of the following compounds has the most acid nature?

Arrange the following in decreasing order of acidic character:

What is the correct order of reactivity of alcohols in the following reaction?

\[\ce{R-OH + HCl ->[ZnCl2] R-Cl + H2O}\]

Which of the following statements is true:

Identify the law which is stated as:

“For any solution, the partial vapour pressure of each volatile component in the solution is directly proportional to its mole fraction.”

Metal M ions form accp structure. Oxide ions occupy `1/2` octahedral and `1/2` tetrahedral voids. What is the formula of the oxide?

Assertion: The packing efficiency is maximum for the fcc structure.
Reason: The cordination number is 12 in fcc structures.

Match the laws given in Column I with expresions given in Column II.

The cell constant of a conductivity cell ______.