Name the type of isomerism shown by the following pairs of coordination compounds:
(i) [Co (NH3)NO2 ]Cl2 and [Co (NH3)5 ONO]Cl2
(ii) [Cr (H20)5 Cl] Cl2 H2 O and [Cr (H2 O)4 Cl2 ] Cl.2H20
For the following cell, calculate the emf:
Al/Al+3 (0.01M) || Fe+2 (0.02M)/Fe
Given: E°AI+3/A1 =-1.66 V
E0Fe +2/Fe= -0-44V
An alkyl bromide undergoes reaction in the alkaline medium to form the corresponding alcohol. When the concentration of the alkyl bromide is doubled keeping the concentration of the alkali constant, the rate of the reaction is doubled. When the concentration of the alkali is doubled keeping the concentration of the alkyl bromide constant, the rate of the reaction remains the same.
Write the mechanistic steps for the reaction and state the type of the reaction and the nature of the reagent.
Arrange the following in increasing order of acidity and explain your order :
Formic acid, acetic acid, chloroacetic acid
Acetic acid < Fromic acid< Chloroacetic acid
Proton donors are acids. Chlorine is electronegative element, it attracts the electrons towards itself, as a result removal of proton from chloroacetic acid becomes easier. Incase of acetic acid, methyl group is electron doner. Therefore it increases electron density as a result removal of proton becomes difficidt. Formic acid does not have any donor or withdrawing group.
How can crystalline sodium thiosulphate be prepared starting from sulphur ?
What particular property of sodium thiosulphate is responsible for its use as an santichlor in the textile industry?
Write balanced equations for each of the following reactions :
(i) Fluorine and dilute sodium hydroxide.
(ii) Ozone and hydrogen sulphide.
(iii) Hydrogen peroxide and sodium hydroxide.