CBSE Class 10 - Chemistry - Redox Reactions - Questions and Answers Q1. What is oxidation? Answer: Addition of oxygen or removal of hydrogen from a compound is known as oxidation. Elements or compounds in which oxygen or non-metallic element is added or hydrogen or metallic element is removed...
Chemistry worksheets for Class 10 are an essential resource for teachers who are looking to provide their students with a comprehensive understanding of the subject matter. These worksheets cover a wide range of topics, including atomic structure, chemical bonding, chemical reactions, and stoichiometry,...
Q.5.On the basis of reactivity of different metals with oxygen, water and acids as well as displacement reactions, the metals have been arranged in the decreasing order of their reactivities. This arrangement is known as activity series or reactivity series of metals.The basis of reacti...
Previous-Years Question Papers for Class 12 Chemistry Balancing a Chemical Equation 3,42,952 Chemical Reactions and Equations 10,304 The Modern Periodic Table 2,46,918 Hydrocarbons 9,419 Frequently Asked Questions on Chemistry Q1 What Is the Periodic Table?
Write balanced equations for these reactions. Solution: Caustic soda is Sodium hydroxide (NaOH) (a) FeCl3+ 3NaOH → Fe(OH)3↓ + 3NaCl Yellow solution Reddish-brown ppt. Colourless in solution In excess of alkali, the reddish-brown ppt. of Fe(OH)3remains insoluble. ...
CHEMICAL REACTIONS Finds reaction equations by entered part 8000 reactions are available without internet connection TRANSFORMATION CHAINS Solves open chains Enter: Cu = CuO = CuCl2 = Cu(OH) 2 Result: 1) Cu + H2SO4 = CuO + SO2 + H2O 2) 4CuO + 2NH4Cl = 3Cu + CuCl2 + N2 + 4H2O 3...
Synthetic chemistry has traditionally relied on reactions between reactants of high chemical potential and transformations that proceed energetically downhill to either a global or local minimum (thermodynamic or kinetic control). Catalysts can be used to manipulate kinetic control, lowering activation ener...
The intermolecular amination of C–H bonds is an enabling transformation for the synthesis of nitrogen-containing molecules; however, developing catalysts for this class of reactions is very challenging. Now, an iron-based enzyme for this reaction has been engineered, demonstrating that a protein can...
metal catalysts of great scientific and practical importance. In this mini-review, Zhan Lu (陆展), Congyang Wang (王从洋), Shaolin Zhu (朱少林), Shou-Fei Zhu (朱守非), and coworkers summarize recent advances in Mn, Fe, Co, Ni-catalyzed organic r...
The reaction of isocyanates with imines derived from allyl glycinate and differently substituted propionaldehydes was investigated. For reactions with α,α-dimethylated imines either 2,3-dihydro-4H-1,3,5-oxadiazin-4-ones or 2,4-dioxo-6-(aryl-/alkylthio)tetrahydro-pyrimidines were obtained as ...