Elements of Group 13, 14 and 15 Chemistry - Elements of Group 13, 14 and 15

Which of the following shows most prominent inert pair effect ?

Thallium shows different oxidation state because ……………

Haber’s process is used for preparation of ………….

………… is inorganic graphite.

Which of the following is not an allotrope of carbon?

State true or false. Correct the false statement.

The tendency for catenation is much higher for C than for Si.

State true or false. Correct the false statement.

 The acidic nature of oxides of group 13 increases down the graph.

Does boron form covalent compound or ionic?

Which element from the following pairs has higher ionization enthalpy?
B and TI, N and Bi

What is common between diamond and graphite?

Give the reactions supporting basic nature of ammonia.

Draw the structure of the following : Resonance structure of nitric acid

Draw the structure of the following : Orthophosphoric acid

Ammonia is a good complexing agent. Explain.

Give the test that is used to detect borate radical is qualitative analysis.

A compound is prepared from the mineral colemanite by boiling it with a solution of sodium carbonate. It is white crystalline solid and used for inorganic qualitative analysis.

difference between : White phosphorus and Red phosphorus

difference between : Diamond and Graphite

Find out the structural formulae of various oxyacids of phosphorus.

Shravani was performing inorganic qualitative analysis of a salt. To an aqueous solution of that salt, she added silver nitrate. When a white precipitate was formed. On adding ammonium hydroxide to this, she obtained a clear solution. Comment on her observations and write the chemical reactions involved.

Explain structure and bonding of diborane.

Explain the trend in oxidation state of elements from nitrogen to bismuth.

What are silicones? Where are they used?