NCERT Solutions for Class 12 Chemistry Chapter 10 – Haloalkanes and Haloarenes have been prepared with a detailed explanation of all the questions that would help the students to understand the concepts better. The First 10 NCERT Exercise Solutions of the Chapter Haloalkanes and Haloarenes has been done in this unit. The other solutions will …
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All molecules can be described in terms of their symmetry, even if it is only to say they have none. Molecules or any other objects may contain symmetry elements such as mirror planes, axes of rotation, and inversion centres. The actual reflection, rotation, or inversion are called symmetry operations. To contain a given symmetry element, …
In this article, we have provided only the GU BSc Chemistry Question Papers of all the Semesters. You can download the Gauhati University BSc Chemistry Question Papers of all the Semesters from the links below. We have two previous year question papers of Mathematics and Physics (Gen) of 2nd Semester with us. Click on both the …
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What is hydrogenation of alkenes? Key points: Wilkinson’s catalyst, [RhCl(PPh3)3], and related complexes are used for the hydrogenation of a wide variety of alkenes at pressures of hydrogen close to 1 atm or less; suitable chiral ligands can lead to enantioselective hydrogenations. The addition of hydrogen to an alkene to form an alkane is favoured thermodynamically …
What is hydrogen bond with examples? The hydrogen atom which is bonded to an electronegative atom can form a hydrogen bond to a second electronegative atom. It is thus a force of attraction between opposite partial charges δ+ charge on H in the OH group and δ– charge on the O of another group. Hydrogen bond requires …
The 18-electron rule is sometimes referred to as the effective atomic number or EAN rule. What is EAN rule with example? The sum of the electrons on the metal plus the electrons donated from the ligands was called the effective atomic number (EAN), and when it was equal to 36 (Kr), 54 (Xe) and 86 …
Key points: Tin and lead form tetravalent organo compounds; organotin compounds are used as fungicides and pesticides. Many organometallic compounds of Group 14 are of great commercial importance, although the use of lead is illegal in many parts of the world, owing to its toxicity. Generally, organometallic compounds of the group are tetravalent and have …
Phosphorus has many allotropes, which includes white phosphorus, red phosphorus and black phosphorus. Structure Of Phosphorus Phosphorus exists as tetrahedral P4 molecules in the liquid and gas phases. At very high temperatures, P4 dissociates into P2. At approximately 1800 °C, this dissociation reaches 50 per cent. Different Allotropes of Phosphorus White Phosphorus – The Most …
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