Question

Name the main metal present in the following:। a) Haemoglobin b)Chalk c) Chlorophyll d)Chocolate Wrappers?

Answer 1

haemoglobin-iron
chalk-calcium

Answer 2

Answer: Metals present in

1. Haemoglobin - Iron
2. Chalk - Calcium
3. Chlorophyll - Magnesium
4. Chocolate wrappers - Aluminium

Explanation: Metals are the elements which loose their electrons easily.

• Main element present in the Haemoglobin is Iron. It is a tetramer of [Fe-heme] complex.

• Main element present in chalk is Calcium. The composition of chalk is $CaCO_3$

• Main element present in Chlorophyll is magnesium. The central metal atom is Magnesium and organic molecule around it is known as porphyrin.

• Main element in Chocolate wrappers is Aluminium. the wrapper is mainly the aluminium foil.