Advertisements
Advertisements
प्रश्न
What is a chemical equation?
उत्तर
A chemical equation is a short hand representation of a chemical reaction with the help of chemical symbols and formulas.
APPEARS IN
संबंधित प्रश्न
Complete and balance the following equation:
CA (OH)2 + ............. 
CaCO3 + H2O
Potassium chlorate (KClO3) on heating forms potassium chloride and oxygen. Write a balanced equation for this reaction and indicate the evolution of gas.
An acid which can decolourise purple coloured potassium permanganate solution is:
(a) sulphuric acid
(b) citric acid
(c) carbonic acid
(d) hydrochloric acid
A white precipitate can be obtained by adding dilute sulphuric acid to:
(a) CuSO4 solution
(b) Nacl solution
(c) BaCl2 solution
(d) Na2SO4 solution
Write word equation for the following skeletal equation:
\[\ce{AgBr -> Ag + Br2}\]
Write the answer to the following.
Explain the similarity and difference in two events, namely adding NaOH to water and adding CaO to water.
Write the chemical equation for the following word equation and balance them.
Magnesium + Sulphuric acid → Magnesium sulphate + Hydrogen
Balance the following equation:
Zn + HNO3 `→` Zn(NO3)2 + H2O + NO2
Write three steps of writing chemical equations with example?
A dilute ferrous sulphate solution is gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?
