add and remove

Rinse your mouth 2 to 3 times to remove any food particles and collect saliva in three test tubes labelled A, B and C. To A and B each add half the quantity of 2% starch solution. To C add boiled saliva. Leave them for 5 minutes. At the end of five minute..

The nascent hydrogen so formed, then adds to the coloured matter. As a result the colour is removed and bleaching takes place. Coloured matter + Nascent hydrogen -------------------> Colourless matter The bleaching by sulphur dioxide is not permanent. The reaction is a uns..

"Oxidation is a reaction in which oxygen is added or hydrogen is removed from a substance." Addition of Oxygen Oxygen adds on to magnesium to become magnesium oxide. Removal of Hydrogen Hydrogen is removed from hydroiodic acid to li..

Rinse mouth 2 to 3 times to remove any food particles and collect saliva in three test-tubes labelled A, B and C. To B add half the quantity of 2% starch solution. To C add boiled saliva. Leave them for 5 minutes. At the end of five minutes, a) Addition of iodine to A..

The a -hydrogen in aldehydes and ketones is weakly acidic and may be removed by a base such as NaOH. The acidity of a -hydrogen is due to resonance staiblization of the conjugate base called the enolate anion...

. It is used as a refrigerant as it lasts longer, provides lower temperature and sublimes to gaseous state. Urea is an important fertilizer manufactured from CO 2 . CO 2 is used in extinguishing fires. In the soda-acid type fire extinguisher, CO 2 is produced by the action of H 2 SO 4 on NaHCO 3 . ..

Question: Sheetal was attending first aid classes. There she learnt how to treat a patient with burns. Very soon she got a chance to use it. Complete her narration using the instructions given in the flow chart below. Do not add any information of your own. The first one has been do..

(i) By ozonolysis of alkenes Alkenes react with ozone to form ozonides which on subsequent reductive cleavage with zinc dust and water or H 2 /Pd give aldehydes, Ketones or a mixture of both depending on the substitution pattern of the alkene. (ii) By hydration of alkynes Ethynes adds..

Michael Faraday discovered that a specimen of bismuth was repelled by a strong magnet. Diamagnetism occurs in all materials. These materials are those in which individual atoms do not possess any net magnetic moment. [Their orbital and spin magnetic moment add vectorially to become zero]...

Sulphur dioxide gas exhibits bleaching properties in presence of moisture. It dissolves in water liberating nascent hydrogen. Coloring matter is bleached by reaction with nascent hydrogen. Nascent hydrogen removes oxygen atoms from the coloring matter (reduces coloring matter) and it lose..