Answer: Burning of a candle is a chemical as well as physical change as it involves change in both chemical and physical properties. Everything... View Article
Answer: Steam produces more severe burns than boiling water. We know that in both boiling water and steam, the temperature is around 100-degree... View Article
The solid portion of the Earth's surface called Lithosphere. Let u know more about the lithosphere layer. The outermost part of the Earth which... View Article
Answer: In 2Na(S) + Cl2 → 2 NaCl (S): The oxidising agent is chlorine. According to the new concept, loss of electrons is oxidation and the... View Article
Answer: Sound cannot travel through vacuum. It needs a material medium to propagate. Sound is a vibration that propagates as an acoustic wave... View Article
Answer: China In recent years, China has become the world's largest synthetic rubber manufacturer, consumer, and importer. Industrialized... View Article
Answer: River kaveri The river Kaveri makes the second biggest waterfall in India, known as Shivasamudram Falls. Mysuru, Bengaluru, and the... View Article
Answer: Arsenic sulphide sol is prepared by passing H2S in As2O3 Arsenious sulphide is a lyophobic colloid. It is formed due to the hydrolysis... View Article
Answer: A matter is anything that has mass and occupies space. Pen, paper, clips, sand, air, ice, etc. are different forms of matter. Every... View Article
Answer: Ethyne molecule is sp hybridized since it has one sigma and two carbon-carbon pi bonds. The electronic configuration of carbon in... View Article
Answer: The iron obtained from blast furnace contains 4% Carbon and many impurities like S, P, Si, and Mn in smaller amount and this iron is... View Article
Answer: The first ionization energy of the d-block elements are between s and p-block elements. Elements having electrons (1 to 10) present in... View Article
Answer: The majority of elements exist as a mixture of isotopes of different masses. Because of this combination, fractional atomic masses... View Article
Answer: Aluminium has three electrons, so a hole will be created when silicon is doped with it. When a tetravalent atom such as Si or Ge is... View Article
Answer: Paddy is mainly grown using Transplantation method. The paddy is grown using the transplantation process. To obtain paddy, it is first... View Article
The split ring in the electric motor is also known as a commutator that consists of a simple ring or cylindrical shell which is split axially... View Article
Answer: In the periodic table, silicon (Si) is a close relative to carbon (C). Although the element can be found all over the world, it is not... View Article
Both healthy and disease-free are states of human who are normal. A healthy person can be disease-free but a disease-free person need not be... View Article
Answer: Potential difference is the quantity which is denoted by joule/coulomb. The potential difference between any two points is defined as... View Article