Hydrogen

In context with the industrial preparation of hydrogen from water gas (CO+H₂),which of the following

is the correct statement ?

• CO is removed by absorption in aqueous Cu₂Cl₂ solution

• H₂ is removed through occlusion with Pd

• CO is oxidized to CO₂ with steam in the presence of a catalyst followed by absorption of CO₂ in alkali

• CO and H₂ are fractionally separated using differences in their densities

Hydrogen resembles halogens in many respects for which several factors are responsible. Of the following factors which one is most important in this respect?

• Its tendency to lose an electron to form a cation.

• Its tendency to gain a single electron in its valence shell to attain stable electronic configuration.

• Its low negative electron gain enthalpy value.

• Its small size.

Most aboundant isotops of hydrogen is

• Tritium

• Dueterium

• Protium

• Para - Hydrogen

During electrolysis of water , hydrogen is collected at

• anode

• cathode

• positive electrode

• Both Electrodes

The property of hydrogen which distinguishes it from alkali

metals is

• its electropositive character

• its affinity for non metal

• its reducing character

• its non-metallic character

Which of the following is formed on reaction of carbon

monoxide gas with dihydrogen in presence of cobalt as

a catalyst?

• Methanal

• Methanol

• Methane

• Formic acid

CuO+ H₂--------------------> Cu + H₂O , here H₂ is a

• oxidising agent

• reducing agent

• none

• Both a and b

Addition of hydrogen to vegetable oil to get vanaspati ghee in presence of catalyst

• hydrogenation

• catalytic hydrogenation

• catalysis

• Reduction

Commercially H is prepared by

• Bosch process

• Ostwald process

• None

• Haber Bosch

what does the hydrogen turn into at the anode

• proton

• H²⁺

• H^2-

• H^-