Bells made up of metals and not from wood because metals have the capability to produce sound when hit with a solid object, i.e, they are... View Article
Answer: The representation of a chemical reaction in the form of substances is known as a chemical equation. The equation in which the number of... View Article
Answer: Plaster of Paris is a quick-setting gypsum plaster made from a fine white calcium sulphate hemihydrate powder that hardens when... View Article
a) Reduction b) Oxidation c) Hydration d) None of the above Answer: b) Oxidation Explanation: Fatty foods become rancid due to the process... View Article
A skeletal chemical equation is a representation of a chemical reaction using chemical formulae of reactants and products. In the skeletal... View Article
Answer: Molar mass is defined as the mass of substance for a given amount. The amount of molecules or atoms or compounds present in one mole of... View Article
The phenomenon which burning of candle belongs to both physical and chemical change. When a candle burns, the oxygen in the air reacts and forms... View Article
Terrycot is prepared by mixing Terylene and cotton. TERYLENE, which is a polymer of 1. Ethylene Glycol 2. Terephthalic Acid. The most common... View Article
Petroleum is considered as the major energy source in India after coal. Petroleum refineries act as a nodal industry. The reason is that it... View Article
Answer: The chemical formula of a compound is a symbolic representation of its chemical composition. Chemical formulae provide insight into the... View Article
When benzene undergoes chlorination in presence of sunlight, chlorobenzene is formed. Then the chlorobenzene is treated with aqueous solution... View Article
When sodium hydroxide react with sulphuric acid they form Sodium sulphate and water. The reactants involved in the process are sodium hydroxide... View Article
FeSO4 when heated, it decomposes into ferric oxide, sulphur dioxide and sulphur trioxide. This reaction is an example for decomposition reaction.... View Article
Cl2O7 is most acidic because on reacting with water, it gives most strongest acid than the other three i.e., HClO4. As oxidation state increases... View Article
Diamond is not considered as a non-metal in the exceptional category as diamond is a form of carbon. It is not classified as an element. Diamonds... View Article
If copper sulphate crystals are added to water then, the particles of copper sulphate crystals loses attraction between them and starts moving... View Article
Heating a mixture of Cu2O and Cu2S will give Cu+SO2. Copper is a metal with low reactivity. Hence, it can be extracted by simple heating and is... View Article
Answer: Deficiency is the lack of something or the conditions which fails to meet the requirement. Like humans and animals, plants also work in... View Article
