Advertisements
Advertisements
प्रश्न
Give an example of a chemical equation in which two reactants form:
four product
Advertisements
उत्तर
Four product:
\[\ce{\underset{\text{Pot.dichromate}}{K2Cr2O7} + \underset{\text{Hydrochloric acid}}{14HCl}->\underset{\text{-------Four products --------}}{\underset{\text{Pot. chloride}}{2KCl} + \underset{\text{Chromium chloride}}{2CrCl3} + 7 H2O + \underset{\text{Chlorine}}{3Cl2}}}\]
APPEARS IN
संबंधित प्रश्न
Translate the following statement into a chemical equation and then balance it.
Hydrogen sulphide gas burns in the air to give water and sulphur dioxide.
Complete and balance the following equation:
\[\ce{NaOH + {..........} -> Na2SO4 + H2O}\]
Balance the following equations:
\[\ce{Al(OH)3 -> Al2O3 + H2O}\]
A solution made in water is known as an ______ solution and indicated by the symbol ______.
Rewrite the following information in the form of a balanced chemical equation:
Magnesium burns in carbon dioxide to form magnesium oxide and carbon.
A metal X forms a salt XSO4. The salt XSO4 forms a clear solution in water which reacts with sodium hydroxide solution to form a blue precipitate Y. Metal X is used in making electric wires and alloys like brass.
- What do you think metal X could be?
- Write the name, formula and colour of salt XSO4.
- What is the blue precipitate Y?
- Write a chemical equation of the reaction which takes place when salt XSO4 reacts with sodium hydroxide solution. Give the state symbols of all the reactants and products which occur in the above equation.
A student weighed some raisins and recorded the weight as ‘x’. She then soaked the raisins in distilled water. After about 2 hours she removed the raisins, wiped them dry and weighed them again, and recorded that as ‘y’. The percentage of water absorbed by raisins may be determined using the relationship.
In certain reaction a change of state is observed i.e. solid to liquid, liquid to gas etc. – State the change of state of the products – to give the respective reactant.
NH3 + HCl ⇌ NH4Cl
\[\ce{2KClO3->[MnO2] 2KCl + 3O2[g] - is a balanced equation.}\]
State why the compound MnO2 is written above the arrow.
Balance the following simple equation:
CaO + HCl → CaCl2 + H2O
