Question

Name the non-metal which is used :
(a) To convert vegetable oil into vegetable ghee(solid fat)
(b) As a rocket fuel (in liquid form)
(c) To preserve food materials

Answer 1

Nonmetals are chemical elements that are mechanically weak in their most stable state, brittle if solid, and acquire or share electrons in chemical processes. Nonmetals, on the other hand, lack the lustrous look of metals, have low melting temperatures, boiling points, and densities, and are poor heat and electricity conductors.

Complete answer:
A) Hydrogen is added to oils in the food business (a process known as hydrogenation) to make them more solid, or spreadable.' Hydrogenated oils can be sold as spreads,' but they're also utilised in the food sector to make a variety of meals including biscuits and cakes.
Vegetable oils are hydrogenated in the food industry to create solid or semi-solid fats that may be utilised in spreads, sweets, baked goods, and other items such as butter. Polyunsaturated fatty acids are used to make vegetable oils (having more than one carbon-carbon double bond). Some of these double bonds are broken down during hydrogenation.
B) Hydrogen fuel is a carbon-free fuel that may be burnt with oxygen if it is produced in a carbon-free manner. It's suitable for usage in both fuel cells and internal combustion engines. In terms of hydrogen vehicles, commercial fuel cell vehicles, such as passenger cars, have begun to be utilised, while fuel cell buses have been used for many years. It's also used as a propulsion fuel for spaceships. The non-metal hydrogen is utilised as a rocket fuel (in liquid form).
C) Nitrogen retains the freshness of packaged or bulk goods as a modified environment, pure or combined with carbon dioxide (by delaying rancidity and other forms of oxidative damage). Nitrogen is used as a food ingredient.

Note:
Internal and external atomic forces cause physical variations between metals and nonmetals. The nuclear charge of an atom serves to keep its valence electrons in place on the inside. Externally, the nuclear charges of neighbouring atoms exert attractive forces on the same electrons. Valence electrons are expected to become itinerant when external forces are higher than or equal to internal forces, and metallic characteristics are predicted. Aside from that, nonmetallic characteristics are expected.