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प्रश्न
Why does hydrogen occur in a diatomic form rather than in a monoatomic form under normal conditions?
उत्तर
The ionization enthalpy of hydrogen atom is very high (1312 kJ mol–1). Hence, it is very hard to remove its only electron. As a result, its tendency to exist in the monoatomic form is rather low. Instead, hydrogen forms a covalent bond with another hydrogen atom and exists as a diatomic (H2) molecule.
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संबंधित प्रश्न
Justify the position of hydrogen in the periodic table on the basis of its electronic configuration.
Write the names of isotopes of hydrogen. What is the mass ratio of these isotopes?
Consider the reactions
(A) \[\ce{H2O2 + 2HI -> I2 + 2H2O}\]
(B) \[\ce{HOCl + H2O2 -> H3O+ + Cl- + O2}\]
Which of the following statements is correct about \[\ce{H2O2}\] with reference to these reactions? Hydrogen perioxide is ______.
Elements of which of the following group(s) of periodic table do not form hydrides.
When the first element of the periodic table is treated with dioxygen, it gives a compound whose solid-state floats on its liquid state. This compound has an ability to act as an acid as well as a base. What products will be formed when this compound undergoes authorisation?
Give reasons why hydrogen resembles alkali metals?
Hydrogen resembles alkali metals in many aspects but differs in ______.
Hydrogen was discovered by:
