INDIAN GEOGRAPHY

SOILS AND NATURAL VEGETATION

NATURAL VEGETATION INDIA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which tree can produce gum and is used by the paint & resin industry?
A
Rosewood
B
Date palm
C
Kikar
D
none of above
Explanation: 

Detailed explanation-1: -The gums and gum-resins of commercial importance collected from the forest are gum karaya, gum ghatti, salai gum, guggul, and gums from various species of Acacia, including Indian gum arabic from Acacia nilotica and true gum arabic from A. senegal.

Detailed explanation-2: -True gum arabic is gum acacia; that is, it is produced by species of Acacia. Examples of true gum arabic are gum sudan and gum kordofan, both of which originate in Sudan, and gum senegal, which comes from Senegal. Gum arabic is also collected in northern Nigeria, Libya, Tunisia, and Tanzania.

Detailed explanation-3: -Gum is extracted from larch wood chips. The gum producing properties of this decidious conifer have been known for almost 100 years but it is only recently that it has been commercially exploited as a source of gum.

Detailed explanation-4: -Resins are a mixture of organic compounds mainly composed of terpenes. Gums are made of polysaccharides and their derivatives. Solubility. They are soluble in various organic liquids but not in water. They are water-soluble or rather absorb water well.

There is 1 question to complete.