Short Answer TypeGive balanced chemical equations for the following reactions:
(i) Fluorine is passed through cold, dilute NaOH solution.
(ii) Hydrogen peroxide is treated with acidified KMnO4 solution.
(iii) Sulphuric acid is treated with hydrogen sulphide.
Draw the structure of xenon tetrafluoride molecule and state the hybridization of the central atom and the geometry of the molecule.
Name the important ore of silver. Write all the steps and reactions involved in the Cyanide process for the extraction of silver from its ore.
Explain the following:
(i) Why do transition metal ions possess a great tendency to form complexes?
(ii) The paramagnetic character in 3d-transition series elements increases up to Mn and
then decreases.
(i) Due to small size, high nuclear charge, availability of vacant d- orbitals of suitable energy to accommodate lone pairs of electrons donated by the ligands.
(ii) On moving from Sc to Mn, the number of unpaired electrons increases and hence Paramagnetic character increases. But after Mn, the pairing of electrons in the d-subshell starts and the number of unpaired electrons and hence paramagnetic character decreases.
How can the following conversions be brought about:
(i) Glycerol to formic acid
(ii) Chlorobenzene to phenol
(iii) Diethyl ether to ethanol
(iv) Phenol to aniline.
(i) How is iodoform prepared from ethanol? Give balanced equation.
(ii) What will be the product formed when chlorobenzene is heated with sodium metal in the presence of dry ether?
Give balanced equations for the following name reactions:
(i) Reimer-Tiemann reaction.
(ii) Rosenmund reaction
(iii) Hoffmann’s degradation reaction
Give one chemical test to distinguish between the following pairs of compounds:
(i) Ethylamine and diethylamine.
(ii) Acetaldehyde and benzaldehyde
Arrange the following compounds in the ascending order of their basic strength and give reasons for your answer:
Methylamine, Aniline, Ethylamine, Diethyl ether
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