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GK MCQs Section

Page-20 of Archives: May, 2013

Quick lime

Quick lime:Calcium oxide Calcium oxide (CaO), commonly known as quicklime or burnt lime, is a widely used chemical compound. It is a white, caustic, alkaline crystalline solid at...

May 22, 2013

Phosgene

Phosgene :Carboxyl chloride Phosgene is the chemical compound with the formula COCl2. This colorless gas gained infamy as a chemical weapon during World War I. It is also...

May 22, 2013

Philosopher’s wool

Philosopher’s wool :Zinc oxide Zinc oxide is an inorganic compound with the formula ZnO. ZnO is a white powder that is insoluble in water, which is widely used...

May 22, 2013

Milk of magnesia

Magnesium hydroxide is an inorganic compound with the chemical formula Mg(OH)2. As a suspension in water, it is often called milk of magnesia because of its milk-like appearance....

May 22, 2013

Mohr’s salt

Mohr’s salt :Ferrous ammonium sulphate Ammonium iron(II) sulfate, or Mohr’s Salt, is the inorganic compound with the formula (NH4)2Fe(SO4)2·6H2O. Containing two different cations, Fe2+ and NH4+, it is...

May 22, 2013

Laughing gas

Nitrous oxide, commonly known as laughing gas, is a chemical compound with the formula N2O. It is an oxide of nitrogen. At room temperature, it is a colorless,...

May 22, 2013

Lunar caustic

Silver nitrate is an inorganic compound with chemical formula AgNO3. This compound is a cheap and versatile precursor to many other silver compounds, such as those used in...

May 22, 2013

Indian Nitre

Potassium nitrate is a chemical compound with the formula KNO3. It is an ionic salt of potassium ions K+ and nitrate ions NO3−. Major uses of potassium nitrate...

May 22, 2013

Hypo

Sodium thiosulfate (Na2S2O3), also spelled sodium thiosulphate, is a colorless crystalline compound that is more familiar as the pentahydrate, Na2S2O3·5H2O, an efflorescent, monoclinic crystalline substance also called sodium...

May 22, 2013

Hydrolith

Hydrolith or Calcium hydride is the chemical compound with the formula CaH2.As calcium hydride is a relatively mild desiccant, it is safe compared with more reactive agents such...

May 22, 2013

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