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प्रश्न
Write word equation for the following molecular equation:
\[\ce{CuSO4 + 2NaOH -> Na2SO4 + Cu(OH)2↓}\]
Word equation:
State the colour of the products.
उत्तर
Copper (II) Sulphate + Sodium hydroxide → Sodium sulphate + Copper (III) hydroxide.
The colour of the product Copper (III) Hydroxide is pale blue.
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संबंधित प्रश्न
Complete and balance the following equation:
NaOH + ............ 
Na2 SO4 + H2O
Correct and balance the following equation:
N + H 
NH3
With the help of an appropriate example, justify that some of the chemical reactions are determined by Change in colour
Give chemical equation for the reaction involved in the above case.
When a mixture of gases X and Y is compressed to 300 atm pressure and then passed over a catalyst consisting of a mixture of zinc oxide and chromium oxide (heated to a temperature of 300°C), then an organic compounds Z having the molecular formula CH4O is formed. X is a highly poisonous gas which is formed in appreciable amounts when a fuel burns in a limited supply of air; Y is a gas which can be made by the action of a dilute acid on an active metal; and Z is a liquid organic compound which can react with sodium metal to produce hydrogen gas.
(a) What are X, Y and Z?
(b) Write a balanced chemical equation of the reaction which takes place when X and Y combine to form Z. Indicate the conditions under which the reaction occurs.
Balance the following equation:
PbO + NH3 → Pb + H2O + N2
Balance the following simple equation:
\[\ce{N2 + H2 <=> NH3}\]
Balance the following simple equation:
KBr + Cl2 → KCl + Br2
Fill in the blank with the correct word from the options given below:
A chemical equation is a shorthand form for a _______ change.
What is a reactant in a chemical equation?
A student took a small amount of copper oxide in a conical flask and added dilute hydrochloric acid to it with constant stirring. He observed a change in colour of the solution.
- Write the name of the compound formed and its colour.
- Write a balanced chemical equation for the reaction involved.
