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Chapter: 01. Introduction To Chemistry

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Gunpowder and TNT (Trinitrotoluene) are examples of substances important for _ _ _ _ _ _ _ _ _ _ _ _ _ _.

_ _ _ _ _ _ _ _ _ _ _ _ _ _ discovered Electrons.

The iron pillar in the Qutub Minar complex in Delhi is rust resistant due to a high percentage of _ _ _ _ _ _ _ _ _ _ _ _ _ _.

_ _ _ _ _ _ _ _ _ _ _ _ _ _ discovered Noble gases like Helium, Argon, Krypton and Xenon.

The systematic knowledge gained by humans through observations and experimentation is called _ _ _ _ _ _ _ _ _ _ _ _ _ _.

_ _ _ _ _ _ _ _ _ _ _ _ _ _ discovered Radioactivity.

Aluminium metal is extracted from its ore, _ _ _ _ _ _ _ _ _ _ _ _ _ _.

Salt is the most common food _ _ _ _ _ _ _ _ _ _ _ _ _ _ used from ancient times.

_ _ _ _ _ _ _ _ _ _ _ _ _ _ is a commonly used pesticide.

The three main branches of Science are Physics, Chemistry and _ _ _ _ _ _ _ _ _ _ _ _ _ _.

John Dalton stated that matter consists of small indivisible particles called _ _ _ _ _ _ _ _ _ _ _ _ _ _.

_ _ _ _ _ _ _ _ _ _ _ _ _ _ is known as the Father of Modern Chemistry.

Chemistry is a branch of Science that deals with the _ _ _ _ _ _ _ _ _ _ _ _ _ _ and the physical and chemical properties of various forms of matter.

Raw materials like cement, mortar, steel, glass and paints are used for the construction of _ _ _ _ _ _ _ _ _ _ _ _ _ _.

_ _ _ _ _ _ _ _ _ _ _ _ _ _ discovered the Neutron.

The process of treating the food with certain chemicals to prevent the growth of micro-organisms and spoilage of food is called _ _ _ _ _ _ _ _ _ _ _ _ _ _.

_ _ _ _ _ _ _ _ _ _ _ _ _ _ has played an important role in the development and growth of Chemistry.

_ _ _ _ _ _ _ _ _ _ _ _ _ _ are medicines used to fight bacterial infections.

All the substances are made up of _ _ _ _ _ _ _ _ _ _ _ _ _ _.

The discovery of Oxygen is attributed to _ _ _ _ _ _ _ _ _ _ _ _ _ _.

_ _ _ _ _ _ _ _ _ _ _ _ _ _ bombs are examples of deadly explosives made with the knowledge of Chemistry.

Alchemists used to call the magical substance they sought the _ _ _ _ _ _ _ _ _ _ _ _ _ _.

Talcum powder is primarily composed of _ _ _ _ _ _ _ _ _ _ _ _ _ _.

Indian alchemists were renowned for being the manufacturers of the finest dyes, glass, cement, _ _ _ _ _ _ _ _ _ _ _ _ _ _ and soaps.

_ _ _ _ _ _ _ _ _ _ _ _ _ _ in the stomach helps in the digestion of food.

In case of acidity, it is good to take some mild bases like _ _ _ _ _ _ _ _ _ _ _ _ _ _ and magnesium hydroxide.

Urea, sodium nitrate, and potassium chloride are examples of _ _ _ _ _ _ _ _ _ _ _ _ _ _ used in agriculture.

Nylon, terylene, polyester and rayon are some commonly used _ _ _ _ _ _ _ _ _ _ _ _ _ _.

Common fuels like LPG, petrol and diesel are available to us because of the knowledge of _ _ _ _ _ _ _ _ _ _ _ _ _ _.

Excessive use of _ _ _ _ _ _ _ _ _ _ _ _ _ _ and pesticides harms the environment.

_ _ _ _ _ _ _ _ _ _ _ _ _ _ are chemical substances secreted in the body that help to carry out various chemical reactions.

Medicines that are used to reduce body temperature are called _ _ _ _ _ _ _ _ _ _ _ _ _ _.

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