📚NCERT Questions

1,675 solved questions with detailed explanations

911

If acetate ions (CH3COO-) are added to an acetic acid (CH3COOH) solution at equilibrium, what happens to the concentration of hydrogen ions (H+)?

CBSE11
912

What is the work done (w) during the free expansion of an ideal gas into a vacuum?

CBSE11
913

In Activity 1.2, when lead nitrate solution is mixed with potassium iodide solution, what is the primary observation?

NCERT10
914

Which of the following solvents would most likely dissolve an ionic compound?

CBSE10
915

A solution has a hydrogen ion concentration [H+] = 1.0 x 10^-5 M. What is its pH?

CBSE11
916

What is the role of haemoglobin in human beings?

CBSE10
917

What is the hybridisation of the central atom in [CrF6]3-?

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918

Identify the type of halide for CH₂=CH-CH₂Br.

CBSE12
919

The process of elimination of carbon dioxide from a carboxylic acid is known as:

NCERT11
920

What is the maximum number of electrons that can be accommodated in a shell with principal quantum number 'n'?

CBSE11