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Why a covalent bond is directional?
Covalent bond is formed as a result of pairing of two electrons in atomic orbitals of two atoms. Bond then must lie along the direction of atomic orbital i.e. bond only takes place in the direction of shared pairs of electrons. Hence covalent bonds would have strong directional preferences unlike metallic and ionic bonds.
To calculate the e.m.f of the cell when does the nelsons equation is use? Ans) The Nernst equation is useful to measure the e.m.f of the cell when the concentrations of solution
Which of the following is ideal for Oxidation of propene to propan-1-ol a)Alkaline KMnO 4 b)B 2 H 6 /Alkaline KMnO 4 c)O 3 /Zn dust d)CrO 3 Ans) B 2 H 6 /Alkaline KMno4 is th
Distillation under reduced pressure: Distillation under reduced pressure is widely used for the purification of liquids which have very high boiling points at atmospheric pres
ionic equation for potassium dichromate and potassium manganate
Write the formula and name the example of k peroxide
Explain variations of electronegativity in group & period
Given that the solubility product of calcium fluoride in water at 298K is 0.00000000004.Calculate the solubility of this calcium fluoride at this temperature. Assume the Debye-Huck
Explain about the Intrinsic breakdown: It's because of the excitation of electrons into the conduction band across the energy gap under the condition of excessive volt
determine alcohol acidity in oats
Q. What is a trained sensory panel? A sensory panel is the panel of members of which are capable of giving high reliability of judgements, independent of psychological factors
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