Hydrogen - Online Test

Answer : Option D
Explaination / Solution:

Barium peroxide react with sulfuric acid to produce hydrogen peroxide and barium sulfate. 

Answer : Option B
Explaination / Solution:

Volume strength = 11.2 x M

So M =511.2= 0.446

Strength (g/L ) = 0.446 x 34 = 15.17 g/L

Answer : Option A
Explaination / Solution:

Vanaspati ghee is manufactured from vegetable or seed oil by a process called 'hydrogenation'. Vegetable Oil is a viscous liquid, and contains unsaturated fatty acids, upon hydrogenation it is are converted to saturated fatty acids to form vanaspati ghee which is solid/semi solid in nature. For quick and easy hydrogenation, catalyst like Ni, Pt which are capable of adsorbing hydrogen are used.

Answer : Option C
Explaination / Solution:

Synthesis gas or briefly, syngas, is a mixture of carbon monoxide and hydrogen. Syngas can be produced from many sources, including natural gas, coal, biomass, or virtually any hydrocarbon feedstock, by reaction with steam or oxygen. Syngas is a crucial intermediate resource for production of hydrogen, ammonia, methanol, and synthetic hydrocarbon fuels

Answer : Option C
Explaination / Solution:

The water gas shift reaction converts carbon monoxide and water to carbon dioxide and hydrogen. The reaction is catalysed by a number of different base metal catalysts, depending on the operating temperature and levels of poisons in the feedstock.

CO+H2O⇌CO2+H2

Answer : Option A
Explaination / Solution:

In auto-protolysis a proton is transferred between two identical molecules, one of which acts as a Bronsted acid, releasing a proton which is accepted by the other molecule acting as a Bronsted base.

Auto-protolysis is also called the self-ionization. Auto-protolysis of water is a reaction in which self-ionization of water molecules takes place to produce hydronium ion (H3O+) and hydroxide ion (OH​​​​​-).

2H2O⇌H3O++OH−

Answer : Option C
Explaination / Solution:

Hydrogen peraoxide is also prepared by the reaction of acid sodium peroxides. Reaction is as follow :

Na2O2+H2SO4→Na2SO4+H2O2

Answer : Option C
Explaination / Solution:

Elements of group 7, 8, 9 of d – block do not form hydrides at all. This inability of metal, of group 7, 8, 9 of periodic table to form hydrides is referred to as hydride gap of d – block.

Answer : Option C
Explaination / Solution:

Only Chromium (Cr) who belongs to group 6 forms hydride. Elements of group 7, 8, 9 of d – block do not form hydrides at all. This inability of metal, of group 7, 8, 9 of periodic table to form hydrides is referred to as hydride gap of d – block.

Answer : Option C
Explaination / Solution:

Because it can undergo bond dissociation randomly in presence of light. It dissociates and generates free radicals which is very reactive and acts like bleaching agent.