Advertisements
Advertisements
Question
What do you observe when dilute sulphuric acid is added to granulated zinc?
Advertisements
Solution
When Zinc reacts with dilute sulphuric acid, hydrogen gas is evolved with an effervesence.
Zn + dil. H2SO4 → Zn SO4 + H2.
APPEARS IN
RELATED QUESTIONS
What do you observe when Magnesium ribbon is burnt in oxygen.
Write chemical equation for the event.
Aluminium came in contact with air.
Select the correct answer for the statement given below:
A neutral oxide which does not react with an acid or a base to give salt and water.
Observe the following diagram and identify the type of reaction and write observation.

Which among the following alloys contain mercury as one of its constituents?
A metal that exists as a liquid at room temperature is obtained by heating its sulphide in the presence of air. Identify the metal and its ore and give the reaction involved.
A metal M does not liberate hydrogen from acids but reacts with oxygen to give a black colour product. Identify M and black coloured product and also explain the reaction of M with oxygen.
A solution of CuSO4 was kept in an iron pot. After few days the iron pot was found to have a number of holes in it. Explain the reason in terms of reactivity. Write the equation of the reaction involved.
An element A burns with golden flame in air. It reacts with another element B, atomic number 17 to give a product C. An aqueous solution of product C on electrolysis gives a compound D and liberates hydrogen. Identify A, B, C and D. Also write down the equations for the reactions involved.
Arrange the following as per the instruction given in the bracket:
Al, K, Mg, Ca (decreasing order of its reactivity)
