Advertisements
Advertisements
प्रश्न
Give reason for the following:
Silver salts are kept in dark coloured bottles.
Advertisements
उत्तर
\[\ce{2AgNO3 ->[sunlight] 2Ag + 2NO2 + O2}\]
Silver nitrate gets decomposed by sunlight. Hence silver nitrate is stored in coloured reagent bottles.
APPEARS IN
संबंधित प्रश्न
Aluminium hydroxide reacts with sulphuric acid to form aluminium sulphate and water. Write a balanced equation for this reaction.
One of the following is an exothermic reaction. This is:
(a) electrolysis of water
(b) conversion of limestone into quicklime
(c) process of respiration
(d) process of photosynthesis
The metal M reacts vigorously with water to form a solution S and a gas G. The solution S turns red litmus to blue whereas gas G, which is lighter than air, burns with a pop sound. Metal M has a low melting point and it is used as a coolant in nuclear reactors.
(a) What is metal M?
(b) What is solution S? Is it acidic or alkaline?
(c) What is gas G?
(d) Write a balanced chemical equation for the reaction which takes place when metal M reacts with water.
(e) Is this reaction exothermic or endothermic?
Write word equation for the following skeletal equation:
\[\ce{AgBr -> Ag + Br2}\]
Balance the following equation :
Pb3O4 → PbO + O2
Write the chemical equation for the following word equation and balance them.
Magnesium + Sulphuric acid → Magnesium sulphate + Hydrogen
Write the balanced chemical equation of the following reaction.
silver nitrate → silver + nitrogen dioxide + oxygen
In certain reaction an insoluble solid called precipitate is formed. State the colour and name of the precipitate formed in the following reaction involving addition of:
Lead nitrate to ammonium hydroxide.?
Write a balanced equation for the following word equation:
Potassium bromide + Chlorine → Potassium chloride + Bromine
What is a chemical equation?
