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Q. Define Allotropic forms? All the elements of the group show allotropy. Oxygen exists in two allotropic forms. Dioxygen. 02, is a diatomic gas, paramagnetic in nature. Lewis
what is the balanced equation of the burning of an unknown hydrocarbon, C4H9 in air
If hydrogen atom is in an energy level represented by n=4,how many spectral lines are possible in its emission spectrum? Ans) There is a formula for this i.e [ (n 2- n 1 +1)
describe the steps necessary in preparing a standard solution of 1.0 molar NaOH
Uses of plaster of paris
What is the packet of energy called: (1) Electron (2) Photon (3) Positron (4)Proton Ans: Photon
conclusion on colloid
Resonance effect or mesomeric effect (1) The effect where electrons are transferred from a multiple bond to a molecule, or from a multiple bond to a one covalent bond or lone p
Q. What is compound? A compound is a substance which consists of two or more elements chemically combined. The elements in a compound aren't simply mingled together as they a
Alf3 dot structure
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