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what is alchemy
Q. Determine the wavelength of light wave? Ans. The frequency of an infrared wave is 2.07 x 10 14 Hz. What is the wavelength? c = λv Since we know the speed of light we
How many unpaired electrons are present in cobalt [Co] metal: (1) 2 (2) 3 (3) 4 (4) 7 Ans: 3
in borontriiodide distance between two I atoms is found to be 3.54. if radius of covalent bonded I atom is 1.33. what is covalent radius of boron
Structure of benzene - Kekule structure It has a special structure, which is even though unsaturated even then it usually behave as a saturated compound. (i) Kekule's struct
what is tyndall effecet? can you give an example
respiration. is it a exothermic or endothermic
. Types of salt and what happens when expose to the atmosphere
Dichromate titrations - oxidation reduction titrations These are titrations where, potassium dichromate is utilized as an oxidising agent in acidic medium. The medium is organi
Why boron is electron-deficient (a) Every atom has an octet; thus, this is not an electron-deficient compound. (b) The boron is electron-deficient because it has a sextet o
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