Question

Which one of the following is a neem product used as an insect repellent?
A. Rotenone
B. Azadirachtin
C. Parathion
D. Endrin

Answer 1

Neem is basically known as mosquito repellent. It is basically a natural product used directly on the skin. Moreover, neem trees are quickly grown from their seeds and can also be propagated from cuttings or root suckers. It is a repellent made up of a chemical compound that belongs to the limonoid group.

Complete answer:
The scientific name of neem is Azadirachta. It refers to the large semi-evergreen trees of the East Indies, with a trunk that emits a sticky gum, bitter bark and seeds with medicinal benefits. Moreover, neem trees are cultivated and utilized as a multipurpose tree. Nearly all parts of the neem tree are useful. Moreover, neem oil has traditionally been used as a natural insecticide to repel harmful insects such as mosquitoes. One of the neem products is Azardirachtin which is used as an insect repellent. Basically, it is used as botanical insecticides. It is a yellow-green powder because it adopts the colour of neem with a garlic sulphur odour. It is a chemical compound that belongs to the liminoid group. Neem oil is a vegetable oil pressed from the fruits and seeds of the neem (Azadirachta indica). Another triterpenoid in neem oil is nimbin. The neem seed oil can also be obtained from the solvent extraction of the neem seeds, fruit or kernel.
Hence, option B is the correct answer.

Note: Neem is used as the main component in some toothpaste and mouthwashes. It is commonly used in shampoos for treating dandruff and in soaps or creams for skin allergies and infections. Neem leaves have been used as a traditional treatment for diabetes and it may also help in controlling blood sugar levels.