Advertisements
Advertisements
Question
Write the chemical equation of the reaction which takes place when iron reacts with dilute sulphuric acid. What happens when the gas produced is ignited with a burning matchstick?
Advertisements
Solution
\[\ce{\underset{Iron}{Fe_{(s)}} + \underset{Sulphuric acid}{H2SO4_{{(aq)}}} -> \underset{Iron (II) sulphate}{FeSO4_{(aq)}} + \underset{Hydrogen}{H2_{(g)}}}\]
When the hydrogen gas produced is ignited with a matchstick, it burns with a pop and causes a small explosion.
APPEARS IN
RELATED QUESTIONS
Write an equation for the reaction of:
Sodium with oxygen
Complete and balance the following equation:
\[\ce{Cu(NO3)2_{(aq)} + Zn_{(s)} ->}\]
What is the nature of the oxide Na2O? What happens when it is dissolved in water? Write the chemical equation of the reaction involved.
Name two metals which cannot displace hydrogen from dilute acids.
Why is white phosphorus kept immersed under water?
Can we keep sodium immersed under water? Why?
What is the action of water on aluminium? Write the equation of the chemical reaction involved.
Write the equation for the reaction of:
Magnesium with dilute hydrochloric acid.
Name the products formed in the given case. Also indicate the physical states of all the substances involved.
Name one metal which displaces silver from a silver nitrate solution.
Which non-metal has been placed in the reactivity series of metals?
A basic oxide will be formed by the element ______.
The elements whose oxides can turn litmus solution blue are ______.
When calcium metal is added to water, the gas evolved does not catch fire but the same gas evolved on adding sodium metal to water catches fire. Why is it so?
Calcium floats over water during the reaction with water. Give reason.
Write the chemical equation of the above process.
Explain the following:
Reactivity of aluminium decrease if it is dipped in nitric acid.
Write the chemical equation for the following reaction:
Manganese dioxide is heated with aluminum powder.
Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?
(i) Good thermal conductivity
(ii) Good electrical conductivity
(iii) Ductility
(iv) High melting point
An element X is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in the air. It reacts vigorously with water. Identify the element from the following.
