Answer: Horizontal rows in the periodic table are called periods. There are eighteen vertical columns known as groups in the modern periodic... View Article
Answer: Mendeleev's periodic table contains 63 elements. Mendeleev claimed the famous periodic law that “Element properties are a periodic... View Article
Answer: On an industrial scale, H2O2 is prepared by oxidation of 2-ethylanthraquinol. Hydrogen peroxide is the simplest kind of peroxide... View Article
Answer: Pyrophosphoric acid contains only one P-O-P bonds. Pyrophosphate is the conjugate base of Pyrophosphoric Acid and is corrosive as well... View Article
Answer: 1 joule is defined as the work done in displacing a body through 1 m under the influence of 1 N of force in the direction of force. 1 J... View Article
Answer: The phloem transfers food from the stem to the roots when the plant can produce food and send it to storage areas. On days when there... View Article
Answer: Which alkali metal does not exhibit photoelectric effect lithium(Li). The alkali metals emit electrons when radiation strikes on their... View Article
Answer: Ice absorbs a large amount of Latent heat from the surroundings to melt. There is a lot of heat in the atmosphere before and after... View Article
Answer: The photoelectric effect is a phenomenon in which electrons are ejected from the surface of a metal when light is incident on it. These... View Article
Answer: The difference between TIR and normal reflection are tabulated below. Total Internal Reflection (TIR) Reflection of light It only... View Article
We all can smell the incense stick whenever it is lit. Have you ever imagined how does the smell reaches us and how we detect it? Let us find... View Article
Answer: On reacting NaHCO3 and acetic acid, the gas evolved turns lime water milky. On reacting NaHCO3 and acetic acid, carbon dioxide gas is... View Article
Answer:Â A single chemical compound can have several acceptable systematic names and the systematic method of naming organic chemical compounds... View Article
Answer: + 2 Given complex [Pt(C2H4)Cl3]- Let us consider the oxidation state of Pt be X Since the complex's total charge is 1, the sum of all... View Article
Answer: Given equation K2Cr2O7 → Cr2 (SO4)3 It is an example of reduction process. Let us find the oxidation state of Cr in both K2Cr2O7 and... View Article
Answer: Work done by an electrochemical cell is equal to the decrease in Gibbs energy ΔGo = -nFEocell An electrochemical cell is a device... View Article