Advertisements
Advertisements
Question
Explain the following reaction with the balanced equation.
Sulphur burns in air
Advertisements
Solution
Sulphur burns in air to form sulphur dioxide.
\[\ce{\underset{\text{Sulphur}}{S} + \underset{\text{Oxygen}}{O2} -> \underset{\text{Sulphur dioxide}}{SO2}}\]
APPEARS IN
RELATED QUESTIONS
Give one example each of which illustrates the following characteristics of a chemical reaction:
evolution of a gas
What do you observe when a few pieces of iron are dropped in a blue solution of copper sulphate?
What do you observe when silver nitrate is added to a solution of sodium chloride?
How will you obtain Magnesium oxide from magnesium.
Also give balanced equations for the reactions
How will you obtain Zinc chloride from zinc.
Also give balanced equations for the reactions
Write chemical equation for the event.
Electrolysis of alumina is done.
Write a chemical equation for the following event.
Zinc oxide is dissolved in dilute hydrochloric acid.
Give a balanced equation for the reversible catalytic reaction involving nitrogen as one of the reactants.
Select the correct answer for the statement given below:
The catalyst used in the catalytic reaction involving the reactants nitrogen and hydrogen.
Complete the statement by filling in the blank with the correct word:
The metal which reacts with steam and the reaction is reversible is ________.
Explain the following reaction with the balanced equation.
Sodium burns in air
Explain the following reaction with the balanced equation.
Magnesium reacts with dil HCl
Observe the following diagram and identify the type of reaction and write observation.

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.
Give the steps involved in the extraction of metals of low and medium reactivity from their respective sulphide ores.
Explain the following
- Reactivity of Al decreases if it is dipped in HNO3
- Carbon cannot reduce the oxides of Na or Mg
- NaCl is not a conductor of electricity in solid state whereas it does conduct electricity in aqueous solution as well as in molten state
- Iron articles are galvanised.
- Metals like Na, K, Ca and Mg are never found in their free state in nature.
Of the three metals X, Y and Z. X reacts with cold water, Y with hot water and Z with steam only. Identify X, Y and Z and also arrange them in order of increasing reactivity.
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.
Metal ‘A’ has electronic configuration 2, 8, 1 and metal ‘B’ has electronic configuration 2, 8, 8, 2. Out of these, which metal is more reactive? Write the reaction of this metal with dilute HCl acid.
