Class 10 | Metallurgy
5 March 2024 EasyLearning
Flash Card
Ionic compounds ure soluble in
.............exist in liquid state at room temperature.
Copper loses its lustre due to formation of......... on surface.
Gold plated ornaments are the examples of
Aluminium oxide is.......... in nature.
When a corroded copper article is dipped in silver nitrate solution,
The minerals from which the metal can be separated economically are called
Fe2O3 +2AI - 2Fe+ AI2O3 + HEAT ,In the above reaction,........ undergoes reduction.
Which of the following statements incorrect about leaching process to concentrate ores?
Which of the following is a good conductor of electricity?
When a copper strip is kept immersed in freshly prepared ferrous sulphate solution taken in a test-tube,
In the electrolysis of alumina, aluminium is deposited at .................. while oxygen is liberated at......
The sound of one metal colliding with another metal a noise, this property is called....
Which of the following method is used to prevent the accumulation of greenish layer on brass due to corrosion?
Which of the following statements is INCORRECT?
The hardest among the following metal is.....
Which of the followng nonmetal is a liquid?
If wire of A is immersed in the salt solution of B. wherein B is more reactive than A
Which of the following is the method to concentrate ore?
When an aluminium strip is immersed into ZnSO4 solution, the colour of the solution
The soft metal which can be cut with knife is ,..............
Which of the following statements is INCORRECT?
Cassiterite ore is concentrated by
Iron is
Corrosion of silver causes a black layer of
Cassiterite is an ore of....metal.
Priyanka introduced an iron nail in a test-tube containing freshly prepared copper sulphate solution. What would she observe?
If A is more reactive than metal B
Which of the following is responsible for the crystal structures in ionic compounds?
Nonmetals are also called
In the Wilfiey table method, the particles of gangue are separated by........separation method.
which of the following non metal is lustrous?
In anodization, aluminium is coated with a thin strong and uniform layer of
What is the colour of the flame when copper metal is burned on the flame?
In galvanizing method,............. applied on iron.
Which of the following sets of oxides is acidic?
In which of the following pairs will the displacement reaction occur?
The chemical formula of copper pyrite is
.........metal has the hightes melting point.
Diamond is an allotrope of......
