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Which of the following ions can be replaced by H+ ions when H2 gas is bubbled through the solutions containing these ions ?
Among the given ions, only Cu2+ lies below H2+ in electrochemical series.
The adsorption of hydrogen by metals is called
Occlusion is the phenomenon of adsorption of hydrogen by metal.
In Bosch’s process which gas is utilised for the production of hydrogen gas ?
\(\underbrace{CO+H_{2}}+H_{2}O\overset{catalyst}{\rightarrow}CO_{2}+2H_{2}\)
Hydrogen accepts an electron to form inert gas configuration. In this it resembles
H + e-(1s1)→H-(1s2or [He])
F + e-([He]2s22p5)→ F- ([He] 2s2 2p6 or [Ne])
The property of hydrogen which distinguishes it from alkali metals is
Hydrogen is a non-metal while all other members of group 1 (alkali metals) are metals.
Which cannot be oxidised by H2O2 :
H2O2 cannot oxidise O3.
O3 oxidises H2O2
H2O2+ O3 → H2O + 2O2
Option (d) is correct.
Hydrogen can be have as a metal
Hydrogen behaves as a metal at very high pressure.
On industrial scale, H2O2 is now generally prepared by
By electrolysis of 50% ice cold H2SO4.
2H2SO4→2H++2HSO4-
At anode: 2HSO4-→H2S2O8+2e-
H2S2O8+H2O→H2SO5+H2SO4
H2SO5+H2O→H2SO4H2O2
Hydrogen is evolved by the action of cold dil. HNO3 on
Mn + 2HNO3(dil.)→Mn(NO3)2+ H2
Hydrogen will not reduce
H2 will not reduce heated Al2O3. As Al is more electro-positive than hydrogen. therefore, its oxide will not bereduced by hydrogen.