HSC Science कक्षा १२ - Tamil Nadu Board of Secondary Education Question Bank Solutions

Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.

Which one of the is not a surfactant?

Which one of the is not a surfactant?

Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.

Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.

How will you prepare acetic anhydride from acetic acid?

Extraction of gold and silver involves leaching with cyanide ion. silver is later recovered by

The following set of reactions are used in refining Zirconium

\[\ce{Zr (impure) + 2I2 ->[523 K] ZrI4}\]

\[\ce{ZrI4 ->[1800 K] Zr (pure) + 2I2}\]

This method is known as

In the electrolytic refining of copper, which one of the following is used as anode?

Describe a method for refining nickel.

Explain the zone refining process with an example.

Give the basic requirement for vapour phase refining.

Describe the role of the following in the process mentioned.

Cryolite in the extraction of aluminium.

Describe the role of the following in the process mentioned.

Iodine in the refining of Zirconium.

Explain the principle of electrolytic refining with an example.

The sum of primary valence and secondary valence of the metal M in the complex [M(en)₂(Ox)]Cl is ____________.

A complex has a molecular formula \[\ce{MSO4Cl.6H2O}\] The aqueous solution of it gives white precipitate with Barium chloride solution and no precipitate is obtained when it is treated with silver nitrate solution. If the secondary valence of the metal is six, which one of the following correctly represents the complex?

As per IUPAC guidelines, the name of the complex [Co(en)₂(ONO)Cl]Cl is

Crystal field stabilization energy for high spin d⁵ octahedral complex is ____________.

Choose the correct statement.