Chemistry
Name the following :
(i) The property possessed by metals by which they can be beaten into sheets.
(ii) A compound added to lower the fusion temperature of electrolytic bath in the extraction of aluminium.
(iii) The ore of zinc containing its sulphide.
Related Questions
M is a metal above hydrogen in the activity series and its oxide has the formula M2O. This oxide when dissolved in water forms the corresponding hydroxide which is a good conductor of electricity. In the above context answer the following :
(i) What kind of combination (bond) exists between M and O?
(ii) How many electrons are there in the outermost shell of M ?
(iii) State the reaction taking place at the cathode.
(iv) Which electrode: anode or cathode is the oxidising electrode? Why?
Name the kind of particles present in : Carbonic acid.
Give one equation each to show the following properties of sulphuric acid:
(i) Dehydrating property
(ii) Acidic nature
(iii) As a non-volatile acid
Give balanced chemical equations to prepare the following salts :
(i) Lead sulphate from lead carbonate.
(ii) Sodium sulphate using dilute sulphuric acid
(iii) Copper chloride using copper carbonate.