Chemistry ch-1 introduction to chemistry

Which of the following is defined as the branch of science concerned with the substances of which matter is composed, the investigation of their properties and reactions, and the use of such reactions to form new substances?

• Biology

• Physics

• Chemistry

• Geology

What was the main goal of alchemy, according to historical perspective?

• To discover new elements

• To achieve immortality

• To change base metals into gold or silver

• To invent gunpowder

Which of the following is a major component of our diet and an energy-giving source?

• Proteins

• Fats

• Carbohydrates

• Vitamins

Which term refers to the treatment process of heating food, usually liquids such as milk, to a specific temperature for a set period in order to destroy harmful bacteria without significantly altering its quality?

• Fermentation

• Salting

• Smoking

• Pasteurization

According to the sources, what kind of chemicals are used to treat, cure, or prevent diseases?

• Cosmetics

• Pesticides

• Medicines

• Fertilizers

Which gas is a major component of natural gas (CNG) and liquified petroleum gas (LPG)?

• Ethane

• Butane

• Methane

• Propane

Which common household chemical is extensively used as a cleaning agent in kitchens and bathrooms?

• Sulphuric acid

• Hydrochloric acid

• Nitric acid

• Acetic acid

What is the primary function of pesticides?

• To enhance soil fertility

• To protect crops from pests

• To color fabrics

• To purify water

Jabir Ibn Hayyan, also known as Geber, is referred to as the Father of Early Chemistry for his systematic and experimental approach to scientific studies. Where was his system of medicine commonly practiced?

• Europe

• Ancient Greece

• Ancient Egypt and China from where it spread subsequently to Europe in ancient India

• Arabian Peninsula

Glucose is a simple sugar classified as a carbohydrate. What hormone helps regulate the sugar level in the blood?

• Thyroxine

• Adrenaline

• Insulin

• Estrogen