ISC syllabus 2025 features a marking scheme and exam sample for many of the subjects. Pupils ought to get properly acquainted with the ISC syllabus class 12 to attain properly in the final board evaluation.
The electron pairs in Area usually occupy such positions that they're at highest length so, the repulsive force will probably be minimum amount.
(ii) It will be the responsibility of the Head of the School to guarantee marketing from Class XI to Class XII on The premise with the cumulative accomplishment level of the prospect all through the academic yr in the topics the applicant has actually been registered for.
The just one s, 3-p and a single d-orbitals hybridise to yield 5 sets of SP3 d hybrid orbitals which happen to be directed in the direction of the five corners of a trigonal bipyramidal as in Fig.
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(d) Give the whole quantity of the kind of tooth described in 'one' above, from the mouth of an Grownup and state its perform.
Rivers which originate from the glaciers at significant altitudes Have a very source of water All year long. It is because ice in significant mountains does not soften abruptly. This is because of:
A magnetic compass is existing on a little desk, really near the wall inside a place. A person enters the area and switches on the Air Conditioner fitted near the ceiling. He observes which the needle during the compass demonstrates instant deflection. Detect by far the most possible reason for the deflection.
The concerned authority within the administration Place of work will help you With this regard. You might have to deliver your information which include your name, father's identify, mother's identify, day of start, passing calendar year and many others.
Nuclear demand. Since the nuclear demand enhances the attraction for your electron also increases that’s why ionization enthalpy raises.
Response: Octet rule: Atoms of aspects Merge with each other so as to entire their respective octets In order to acquire the stable fuel configuration.
They're hugely reactive things and so takes place in put together point out. On moving down the team their reactivity raises.
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Answer: Electron acquire enthalpy may be the Strength produced when an isolated gaseous atom is transformed into a detrimental ion by adding CBSE Class 11 Biology an additional electron.