Q. While diluting an acid, why is it recommended that the acid should be added to water and not water to the acid? Top Answer Solution:When an acid is mixed with water, there is an evolution of a large amount…
Q. Why does dry HCl gas not change the colour of the dry litmus paper? Top Answer Solution:Dry HCl gas does not generate H+ ions and hence does not change the colour of dry litmus paper. Related Links
Q. Why should curd and sour substances not be kept in brass and copper vessels? Top Answer Solution:Curd and sour substances not be kept in brass and copper vessels because curd and sour substances contain acids that react with brass…
Q. What are the several types of physical changes? Melting, Freezing, Evaporation, Condensation, Sublimation, Deposition. Top Answer Solution:Change in State (Phase Change) Related Links
Q. What is the Big Bang Theory? Top Answer Solution:The Big Bang Theory explains how the universe began. The Big Bang Theory says the universe started about 13.8 billion years ago from a very small, hot, and dense point. Then it…
Q. What is an ecosystem? Top Answer Solution:An ecosystem is a community of living things (like plants, animals, and microorganisms) and non-living things (like water, air, and soil) that interact with each other in a specific area. It’s like nature’s…
Q. What are the differences between an atom and a molecule? Top Answer Atom Molecule An atom is the smallest unit of an element. It cannot be broken down further while keeping its chemical properties. A molecule is formed when…
Q. What is cloning? Top Answer Solution:Cloning is the process of creating an exact copy of a living thing. The copy, called a clone, has the same genetic material (DNA) as the original. Cloning can happen naturally or be done…
Q. What is a magnet? Top Answer Solution:A magnet is an object that can attract certain materials, like iron, nickel, and cobalt. It produces a magnetic field, which is an invisible force that pulls objects toward it. Magnets are used…
Q. What is the greenhouse effect? Top Answer Solution:The greenhouse effect is a natural process that keeps the Earth warm enough for us to live. It happens when certain gases in the atmosphere, called greenhouse gases, trap heat from the…
