Tag: evs - i

Vitamin K is a naphthaquinone derivative. It contains isoprene units.
It is also called as "anti-haemorrhagic" vitamin.

Iron and cobalt are found in the body.

Given statement is false because Vitamin D is synthesised in skin cells in  presence of sunlight.

Vitamin E is also called Tocopherol. It is a reproductive vitamin. It is also called anti-sterility vitamin as its deficiency leads to sterility.

Because these are found in the earth's crust and all the metal salts which are found in earth's crust are called inorganic salts

Cyanocobalamine is vitamin $B _{12}$. It is manufactured by bacteria and can only be found naturally in animal products. Its main sources are liver of ox, fish, crab, milk, cheese, etc. Thus, it is not obtained from plants.

Liver is not the source of Vitamin - $B _1$

Lead pencil contains carbon material called graphite. 

Our mineral needs are met from food. Minerals also help your body function. Some minerals, like iodine and fluoride, are only needed in very small quantities. Others, such as calcium, magnesium, and potassium, are needed in larger amounts. As with vitamins, if you eat a varied diet, you will probably get enough of most minerals.