Chemistry
What do you observe when —
(i) Ammonia is passed over heated copper oxide.
(ii) Conc. H2SO4 is added to blue vitriol.
(iii) Acetylene is passed into bromine water.
(iv) NaCl is added to silver nitrate solution.
(v) Conc. HCl acid is exposed to atmosphere.
Related Questions
Define
(i) Acid
(ii) molar volume
(iii) neutralisation.
(i) Define pH. If the hydrogen ion concentration of a solution is 10-12 moles per litre, calculate its pH value.
(ii) What fluid is injected when yellow wasps or white ants bite? How can the pain be relieved?
(iii) A solution of Iron (III) chloride has a pH less than 7. Is the solution acidic or alkaline. Write the equation of its hydrolysis.
(iv) If iron is reacted with dilute sulphuric acid, what will be the product formed ?
(i) Give 2 tests to distinguish between HCl solution and Ammonia solution.
(ii) Distinguish between MnO2 and CuO
Write an ionic reaction at the electrodes during electroplating of silver over brass spoon after giving the ionisation of the electrolyte.