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Follow ISC 12th issue papers to know the Test pattern, marking plan and trouble standard of inquiries asked in prior several years.
Because of two lone pairs of electrons on O-atom, repulsion on bond pairs is bigger in H20 compared to NH3 . So, the bond angle is fewer in H20 molecules.
Land methods: Land use sample in India – the standard of cultivable land, dimensions of landholdings.
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NCERT Alternatives for Class 11 Maths Chapter 14 Chance is nicely defined with detailed solutions in order that students can easily comprehend the principle. Right here you can find the idea of the concept of chance adequately.
Respond to: Ionization Enthalpy. The least degree of energy needed to clear away quite possibly the most loosely certain electron from an isolated gaseous atom In order to convert it right into a gaseous cation is known as its ionization enthalpy or Vitality. It is represented by A; H.
Answer: Bond order is described as 50 percent from the difference between the quantity of electrons present in bonding and antibonding molecular orbitals.
Question 22. Exactly what is basic distinction between the terms electron gain enthalpy and electro negativity?
(e) Defaecation — The expulsion of undigested remains of food stuff within the alimentary canal is known as defaecation.
The ISC syllabus 2025 class 11 & 12 for all 3 streams which include Science, Arts, and Commerce is supplied under. Learners can download the pdf in the official website. Alternatively, they are able to down load the ISC board's most up-to-date syllabus for all subjects through the table given under.
Question 35. Nearly anything that influences the valence electrons will have an affect on the chemistry of the component. Which among the next factors will not have an affect on the valence shell?
Explanation: In keeping with magnetic effect of current, when latest flows by way of JEE Main a conducting wire, a magnetic field is established close to it.
sp3 hybridisation: Just one s-and a few p-orbitals get hybridised to form four equivalent hybrid orbitals. These orbitals are directed in the direction of the four corners of a regular tetrahedron.