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