PUC Science 2nd PUC Class 12 - Karnataka Board PUC Question Bank Solutions for Chemistry

Write short notes on acetylation.

Give the IUPAC name of the following compound:

PhCH₂CH₂COOH

Give the IUPAC name of the following compound:

(CH₃)₂C=CHCOOH

Give the IUPAC name of the following compound:

Give the IUPAC name of the following compound:

How the following conversion can be carried out?

Benzene to 4-bromonitrobenzene

Complete the following reactions: C₂H₄ + O₂ →

Complete the following reactions:  4Al + 3O₂ →

Why is dioxygen a gas but sulphur a solid?

Why do noble gases have comparatively large atomic sizes?

Describe the preparation of potassium permanganate. How does the acidified permanganate solution react with SO₂? Write the ionic equation for the reaction.

Describe the preparation of potassium permanganate. How does the acidified permanganate solution react with oxalic acid? Write the ionic equation for the reaction.

Define lanthanoid contraction.

Explain the mechanism of the following reaction:

What type of point defect is produced when AgCl is doped with CdCl₂?

Write the major products(s) in the following:

Why carboxylic acid does not give reactions of carbonyl group?

Define electrochemical cell

Why does the cell potential of mercury cell remain constant throughout its life?

From the given cells:

Lead storage cell, Mercury cell, Fuel cell and Dry cell

Answer the following:

(i) Which cell is used in hearing aids?

(ii) Which cell was used in Apollo Space Programme?

(iii) Which cell is used in automobiles and inverters?

(iv) Which cell does not have long life?