Suggest a method to show the electronegative nature of hydrogen.

How can saline hydrides remove traces of water from organic compounds?

Explain why beryllium forms a covalent hydride while calcium forms an iconic hydride.

Name the isotope of hydrogen which is commonly used as a tracer in organic reactions.

Name the constituents of water gas.

Why can dilute solutions of hydrogen peroxide not be concentrated solution of hydrogen peroxide be obtained?

Basic principle of hydrogen economy is transporation and storage of energy in the form of liquid or gaseous hydrogen.Which property of hydrogen may be usefuk for this chemical equation if required.

How does the atomic hydrogen or oxy-hydrogen torch function for cutting and welding purpose? Explain.

What do you understand by the term 'non-stoichiometric hydrides'? Do you expect this type of hydrides to be formed by alkali metals? Justify your answer.

Comment on the reactions of dihydrogen with chlorine.

Calculate the volume strength of a 3% solution of \({ H }_{ 2 }O_{ 2 }\)

If a given sample of water has degree of hardness equal to 46ppm. If entire hardness is due to MgSO₄, How much MgSO₄ is present per kg of water?

What do you understand by (i) Electron-deficient (ii) Electron-precise (iii) Electron-rich compounds of hydrogen? Provide justification with suitable examples.

Write chemical reaction to show the amphoteric nature of water.

If 5.0 cm³ of H₂O₂ liberates 0.508 g of iodine from an acidified potassium iodide solution, then calculate the strength of H₂O₂ in term of volume strength at STP.

At the home of Mr.Kumar, Dalda ghee is generally used. He is suffering from high blood pressure and diabetes. Mr.Sharma, a friend of Mr.Kumar has advised him to change from ghee to vegetable oil like mustard oil.
Dihydrogen (H₂) is used in the manufacture of vanaspati ghee by hydrogenation of polyunsaturated vegetable oils using nickel as a catalyst.
Vegetable oil \(\xrightarrow [ { H }_{ 2 } ]{ Ni } \) vanaspati ghee
Should we use vegetable oils for cooking? why?

In India, there is the shortage of drinking water. Thus, projects like rainwater harvesting are used by Green Park Association to increase the amount of underground water. Rainwater is the almost pure form of water after the heavy shower as it is, in fact, the distilled water. The first shower contains dissolved gases from the atmosphere. Being a good solvent, when it flows on the surface of the earth, it dissolves many salts in the form of hydrogen carbonate, chloride and sulphate in water which make it hard What is soft water?

Complete the following chemical reactions and classify the above into (a) hydrolysis,(b) redox and (c) hydration reactions.
\(MnO_{ 4 }^{ - }(aq)+{ H }_{ 2 }{ O }_{ 2 }(aq)\rightarrow \)

What do you understand by the terms:
(i) Hydrogen economy
(ii) hydrogenation
(iii) syngas
(iv) water-gas shift reaction
(v) fuel-cell?