Machine parts that are made of iron should be protected from moisture to prevent rusting. This can be done by ........ (washing/painting) these parts.

Iron can be prevented from rusting by

The Zn acts as sacrificial or cathodic protection to prevent rusting of iron because

The Zn acts as sacrificial of cathodic protection to prevent rusting of iron because:

Which type of metal can be used in cathodic protection of iron against rusting.

Read the assertion and reason carefully to mark the correct option in question. Assertion: In the cell membrane , the non-polar tail of saturated hydrocarbons is protected from the aqueous environment. Reason: The lipids are arranged within the membrane with polar head towards the outer sides and the hydrophobic tail towards the inner part.

Galvanisation is a method of protecting iron from rusting by coating it with a thin layer of

A spring of force constant K is first stretched by distance a from its natural length and then further by distance b. The work done in stretching the part b is

A piston can freely move inside a horizontal cylinder closed from both ends. Initially, the piston separates the inside space of the cylinder into two equal parts each of volume V_0 in which an ideal gas is contained under the same pressure p_0 and at the same temperature. What work has to be performed in order to increase isothermally the volume of one part of gas eta times compared to that of the other by slowly moving the piston ?

Which metal is used to protect the iron sheets from rusting by a process known as galvanization ?

What preventive measure provided in a gadget can protect a person from an electric shock?