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

Which of the following factor do not affect the solubility of a solid solute in liquid?

When a solid solute is added to the solvent, some solute dissolves and its concentration increases in solution. This process is known as ___________. Some solute particles in the solution collide with the solid solute particles and get separated out of the solution. This process is known as __________.

At the state of dynamic equilibrium, for solute + solvent solution.

Which of the following statements is incorrect?

On dissolving sugar in water at room temperature solution feels cool to touch. Under which of the following cases dissolution of sugar will be most rapid?

A beaker contains a solution of the substance ‘A’. Precipitation of substance ‘A’ takes place when a small amount of ‘A’ is added to the solution. The solution is ______.

Maximum amount of a solid solute that can be dissolved in a specified amount of a given liquid solvent does not depend upon ______.

The catalyst used in the manufacture of HNO₃ by Ostwald’s process is ____________.

Concentrated nitric acid, upon long standing, turns yellow brown due to the formation of ____________.

Alkenes convert into alcohols by ____________.

Which of the following reacts with NaOH to give alcohol?

Commercially carboxylic acids are reduced to alcohols by converting them to the ______.

Which among the following is the simplest sugar?

Acetone reacts with Grignard reagent to form:

In zinc blend structure:

A unit cell of BaCl₂ (fluorite structure) is made up of ____________.

The fraction of the total volume occupied by the atoms present in a simple cube is ____________.

How many lithium atoms are present in a unit cell with edge length 3.5 Å and density 0.53 g cm⁻³? (Atomic mass of Li = 6.94):

The distance between Na^– and Cl^– ions in NaCl with a density 2.165 g cm^–3 is __________.

Identify ‘C’ in the following: