Give reasons for the following: Iron vessels are not used a boilers that are used to boil water.

Give reason for the following. a) Iron vessels are not used as boilers that are used to boil water. b) Blue vitriol solution is not kept in iron vessels.

Give reasons for the following: Graphite is used as a lubricant in machines.

Give reasons for the following. Red light is used as signal lamps.

Give the use of the following: Antacids

Give the use of the following: Tranquilizers

Give reasons for the following: Blue vitriol solution is not kept in iron vessels.

Give reason for the following : CuSO_4 solution is not stored in iron vessels.

Give reasons for the following: Borax bead test can be used to identify metaborates in the laboratory.

Give reason for the following : Buttermilk is not stored in aluminium vessels.

Give reasons for the following statements. Tamarind is not stored in aluminium vessels. It is a common practice to apply oil on iron articles and tools. Stainless steel knives, instead of iron knives, are preferred for cutting citrous fruits.