Chemistry
Why is copper not used to prepare hydrogen by the action of dilute hydrochloric acid or dilute sulphuric acid on the metal.
Related Questions
Account for the following facts :
(i) Though lead is above hydrogen in the activity series, it does not react with dilute hydrochloric acid or dilute sulphuric acid.
(ii) Potassium and sodium are not used to react with dilute hydrochloric acid or dilute sulphuric acid in the laboratory preparation of hydrogen.
Place the metals calcium, iron, magnesium and sodium in order of their activity with water, placing the most active first. Write the equation for each of the above metals which react with Water.
State the electronic configuration of hydrogen [at. no. 1]. Give a reason why hydrogen can be placed in group 1 [1A] and group 17 [VIIA] of the periodic table.
Give the general group characteristics applied to hydrogen with respect to similarity in properties of hydrogen with –
(a) alkali metals of group 1 [IA]
(b) halogens of group 17 [VIIA].with special reference to valency electrons & ion formation.