Metal

Which one of the following is not true for anodizing process?

Which of the following statements with regard to the reaction given below are correct?

$\mathrm{CaO}\left(\mathrm{s}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{I}\right)\to \mathrm{Ca}{\left(\mathrm{OH}\right)}_2\left(\mathrm{aq}\right)+\mathrm{Heat}$

$1.$ Quicklime is used for whitewashing of walls.

$2.$ The solution of slaked lime is used for whitewashing of walls.

$3.$ CaO reacts slowly with ${\mathrm{CO}}_2$ in air to form a thin layer of ${\mathrm{CaCO}}_3$ on walls.

$4.$ Calcium hydroxide called 'slaked lime' is an inorganic compound.

Select the correct answer using the code given below.

Consider the following statements regarding burning of magnesium ribbon in air :

$1.$ White powder of $\mathrm{MgO}$ is formed.

$2.$ It is an example of combustion reaction.

$3.$ Heat and light are produced.

Which of the statements given above are correct?

School bells are made of metals because metals are _____. 

Which one of the following pairs of metals are very good conductors of heat?

In the joining of railway tracks, iron oxide is made to react with _____.

A patient's abdomen (alimentary canal) can be examined by X-ray after administering which one of the following metal salts in the patient's meal?

Match List-I with List-II.

Choose the correct answer from the options given below:

Which of the following is an oxide of copper?

The metal used to detect nitrogen in an organic compound is _____.

In medicine, ______ is a device such as a small metal plate or needle that carries electricity from an instrument to a patient for treatment or surgery.

The alloy used in dental filling contains

The ore which does not contain iron is

Which of the following is not a mineral of aluminium?

Bauxite is the ore of

Which of the following is magnetite?

Which one of the following is not a sulphide ore?

The name of the metal which is extracted from the ore is given below. Mark the example which is not correct.

Which of the following is not an ore of magnesium?

Which of the following is not the correct name of the formula of the ore given with it?