Hydrogen in the form of single atom rather than molecules, makes it extremely reactive it is also called an atomic hydrogen.
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Q1
Dipole moments : HCl(1.03D) and HI(0.38D). compare the magnitude of the partial charge on hydrogen atom in HCl with that on the hydrogen atom of HI. If it is assumed that the partial positive and negative charges are central on the hydrogen and halogen atoms, respectively, the distance between charge centers are calculated to be 1.27 and 1.61˙A for HCl and HI, respectively :
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Q2
The conversion of atomic hydrogen into molecular hydrogen is______.
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Q3
If all non metals have negative charge , why only hydrogen has a positive charge?
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Q4
Statement 1: The chlorine atom in HCl develops a partial negative charge and hydrogen atoms develop a partial positive charge.
Statement 2: A chlorine atom with a lower electronegativity attracts the shared pair of electrons towards its nucleus.
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Q5
A cell contains two hydrogen electrodes. The negative electrode is in contact with a solution of 10−6 M hydrogen ions. The EMF of the cell is 0.118V at 25∘C. The concentration of hydrogen ions at the positive electrode is: