Science (English Medium) Class 12 - CBSE Question Bank Solutions for Chemistry

Write the name of gas released when Cu is added to the conc. HNO₃ 

Answer the following question.
Write the disproportionation reaction of H₃PO₃. 

State Henry’s law.

Answer the following question.
Write IUPAC name of the complex [Pt(en)₂CI₂]. Draw structures of geometrical isomers for this complex.

Why type of drug is used in sleeping pills?

Write the reaction involved when D-glucose is treated with the following reagent:

Br₂ water

Write the reactions involved when D-glucose is treated with the following reagent:
H₂N-OH

Write the reaction involved when D-glucose is treated with the following reagent:

(CH₃CO)₂O

Why phenol undergoes electrophilic substitution more easily than benzene?

What is the total number of atoms per unit cell in a face-centered cubic structure?

The number of atoms per unit cell in a body centered cubic structure is ____________.

An atom located at the body center of a cubic unit cell is shared by ____________.

Volume of unit cell occupied in face-centered cubic arrangement is ____________.

TiCl has the structure of CsCl. The coordination number of the ions in TiCl is ____________.

An element forms a cubic unit cell with edge length 405 pm. Molar mass of this element is 2.7 × 10⁻² kg/mol and its density is given as 2.7 × 10³ kg/m³. How many atoms of these elements are present per unit cell?

A substance forms face-centered cubic crystals. Its density is 1.984 g/cm³ and the length of the edge of the unit cell is 630 pm. Calculate the molar mass in g/mol?

A metal has a body-centered cubic crystal structure. The density of the metal is 5.96 g/cm³. Find the volume of the unit cell if the atomic mass of metal is 50.

Which law shows relation between pressure and solubility of a gas in solvent?

Relationship between equilibrium constant of the reaction and standard electrode potential of electrochemical cell in which that reaction takes place is ____________.

Straight line graph for first order reaction is obtained between ____________.