Advertisements
Advertisements
प्रश्न
Write a balanced equation for the following word equation:
Aluminium + Oxygen → Aluminium oxide
उत्तर
4Al + 3O2 → 2Al2O3
APPEARS IN
संबंधित प्रश्न
With the help of an appropriate example, justify that some of the chemical reactions are determined by Change in temperature.
Give chemical equation for the reaction involved in the above case.
State one characteristic of the chemical reaction which takes place when wax is burned in the form of a candle?
When water is added gradually to a white solid X, a hissing sound is heard and a lot of heat is produced forming a product Y. A suspension of Y in water is applied to the walls of a house during white washing. A clear solution of Y is also used for testing carbon dioxide gas in the laboratory.
(a) What could be solid X? Write its chemical formula.
(b) What could be product Y? Write its chemical formula.
(c) What is the common name of the solution of Y which is used for testing carbon dioxide gas?
(d) Write chemical equation of the reaction which takes place on adding water to slid X.
(e) Which characteristic of chemical reactions is illustrated by this example?
Zinc oxide reacts with carbon, on heating, to form zinc metal and carbon monoxide. Write a balanced chemical equation for this reaction. Name (i) oxidising agent, (ii) reducing agent, in this reaction.
Balance the following equation. Also name the product formed.
`"CO" + "O"_2 → " CO"_2`
What information does the following chemical equation convey?
Zn + H2SO4 → ZnSO4+ H2
Why should an equation be balanced? Explain with the help of a simple equation.
How is a flame test performed?
Name the following:
Two gases which react under pressure in presence of a catalyst at elevated temperatures to give a gaseous product.
What is meant by ‘reactants’ and ‘products’ in a chemical equation?
