Advertisements
Advertisements
प्रश्न
Why does \[\ce{H+}\] ion always get associated with other atoms or molecules?
पर्याय
Ionisation enthalpy of hydrogen resembles that of alkali metals.
Its reactivity is similar to halogens.
It resembles both alkali metals and halogens.
Loss of an electron from hydrogen atom results in a nucleus of very small size as compared to other atoms or ions. Due to smal size it cannot exist free.
Advertisements
उत्तर
Loss of an electron from hydrogen atom results in a nucleus of very small size as compared to other atoms or ions. Due to smal size it cannot exist free.
Explanation:
Loss of the electron from hydrogen atom results in nucleus size \[\ce{(H+)}\] of 1.5 × 10–3. This is extremely small as compared to normal atomic and ionic sizes of 50 to 200 pm. As a consequence, \[\ce{H+}\] does not exist freely and is always associated with other atoms or molecules.
APPEARS IN
संबंधित प्रश्न
A commercial sample of hydrogen peroxide marked as 100 volume H2O2, it means that
Volume strength of 1.5 N H2O2 is
Mention the uses of deuterium.
Explain the preparation of hydrogen using electrolysis.
Hydrogen peroxide is obtained by the electrolysis of ______.
How is heavy water prepared? Compare its physical properties with those of ordinary water.
Rohan heard that instructions were given to the laboratory attendent to store a particular chemical i.e., keep it in the darkroom, add some urea in it, and keep it away from dust. This chemical acts as an oxidising as well as a reducing agent in both acidic and alkaline media. This chemical is important for use in the pollution control treatment of domestic and industrial effluents. Write the name of this compound.
Rohan heard that instructions were given to the laboratory attendent to store a particular chemical i.e., keep it in the darkroom, add some urea in it, and keep it away from dust. This chemical acts as an oxidising as well as a reducing agent in both acidic and alkaline media. This chemical is important for use in the pollution control treatment of domestic and industrial effluents. Write the name of this compound. Explain why such precautions are taken for storing this chemical.
What is the importance of heavy water?
Give a method for the manufacture of hydrogen peroxide and explain the reactions involved therein.
What mass of hydrogen peroxide will be present in 2 litres of a 5 molar solution? Calculate the mass of oxygen which will be liberated by the decomposition of 200 mL of this solution.
Hydrogen peroxide is obtained by the electrolysis of ______.
H2O2 can be obtained when the following reacts with H2SO4 except with:
The volume of '10 Vol' of H2O2 required to liberate 500 mL O2 at NTP is ______.
In a basic medium, H2O2 exhibits which of the following reactions?
(A) \[\ce{Mn^{2+} -> Mn^{4+}}\]
(B) \[\ce{I2 -> I^-}\]
(C) \[\ce{PbS -> PbSO4}\]
Choose the most appropriate answer from the options given below.
The strength of the 11.2 volume solution of H2O2 is ______.
[Given that molar mass of H = 1 g mol−1 and O = 16 g mol−1)
