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रसायनविज्ञान क्या है (What Is Chemistry) रसायन विज्ञान भौतिक विज्ञान की वह शाखा है जिसके अन्दर पदार्थ एवं इसके भौतिक और रासायनिक गुणों, रासायनिक संरचना, तथा इनमे होने वाले भौतिक और रासायनिक परिवर्तनो व इन प्रक्रियाओं निकलने वाली ऊर्जा का … Read more
Hydrogen Application Uses of Hydrogen Gas Hydrogen used as reducing agent in the reaction leading to formation of water, ammonia, methanol,hydrogen halide and vanaspati ghee etc. in space it is used as a rocket fuels. hydrogen gases also has the … Read more
Laboratory Preparation of Hydrogen Gas In the laboratory method, hydrogen gas is prepared by reaction of Zinc granules with dil. Sulphuric Acid (H2SO4) or dil hydrochloric acid (HCl) Zn + dil H2SO4 ———> ZnSO4 + H2 Zn + dil HCl——-> ZnCl2 + … Read more
Hydrogen and its compounds: Introduction Hydrogen is the lightest element in the periodic table with Atomic number Hydrogen 1and the symbol H. The standard atomic weight of Hydrogen element 1.008,. It is the most abundant chemical substance in the Universe, … Read more