Question

1.     Write a brief essay on any ONE of these amines:

 Aniline

Amphetamine Nicotine

 Pyridine

 Morphine

 Heme

 Sildenafil (popularly known as “Viagra”)

(5 marks)

2.     Write a brief essay about any FIVE carbon allotropes of your choice. 

(5 marks) 

Answer 1

Heme, or haem (spelling differences) is a substance precursive to hemoglobin, which is necessary to bind oxygen in the blood stream. 

Heme is biosynthesized in both the bone marrow and the liver.

Graphite (/ˈɡræfaɪt/), archaically referred to as plumbago, is a crystalline form of the element carbon with its atoms arranged in a hexagonal structure. It occurs naturally in this form and is the most stable form of carbon under standard conditions. Under high pressures and temperatures it converts to diamond.