Question

The method used for balancing chemical equation is called hit and trial method. In this method,

the number of atoms of each element remain the same, before and after a chemical reaction.

Zn metal reacts with dilute sulphuric acid to form ‘ X ’ and hydrogen gas. Count the number of

atoms of all the elements in the reactants and products separately.

i) Identify ‘ X ’.

ii) Write the balanced chemical equation when Zn metal react with dil H2SO4.

iii) Name the type of chemical reaction that occurs in the above reaction.​

Answer 1

Answer:

1.The reaction is between tin and water used to produce hydrogen.

Under normal circumstances tin is stable in water. When it comes in contact with steam vapour, the reaction results, forming tinoxide and hydrogen.

2.Zn+H2SO4(dil)→ZnSO4+2H2

3.Sulfuric acid (American / IUPAC spelling) or sulphuric acid (traditional British spelling), also known as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen and hydrogen, with molecular formula H2SO4. It is a colourless, odourless, and viscous liquid that is soluble in water and is synthesized in reactions that are highly exothermic.