Which atom is oxidized HNO3 HBR no H2O?
Which atom is oxidized HNO3 HBR no H2O?
The correct answer is that bromide ion is oxidized. 2Br^- ==> Br2 + 2e so Br^- loses electrons and that is the definition of oxidation. Oxygen has no change in oxidation state; i.e., it is -2 in HNO3 and -2 in H2O and NO.
What is the key factor in defining a reaction as an oxidation-reduction reaction?
Most oxidation-reduction (redox) processes involve the transfer of oxygen atoms, hydrogen atoms, or electrons, with all three processes sharing two important characteristics: (1) they are coupled—i.e., in any oxidation reaction a reciprocal reduction occurs, and (2) they involve a characteristic net chemical change— …
What is the reducing agent in the following reaction 2na s → na2s?
Sulphur acts as oxidizing agent and sodium acts as reducing agent . Explanation: Oxidation-reduction reaction or redox reaction is defined as the reaction in which oxidation and reduction reactions occur simultaneously.
What type of reaction is 2Na s na2s?
combination reaction
Which substance is serving as the reducing agent in the following reaction?
Ni acts as reducing agent as it is oxidised from 0 oxidation state to +2 oxidation state. Was this answer helpful?
How do you know what the oxidizing agent is?
So to identify an oxidizing agent, simply look at the oxidation number of an atom before and after the reaction. If the oxidation number is greater in the product, then it lost electrons and the substance was oxidized. If the oxidation number is less, then it gained electrons and was reduced.
What is meant by reducing sugar and non-reducing sugar?
Sugars that can be oxidised by mild oxidising agents are called reducing sugars. A non-reducing sugar is a sugar that is NOT oxidised by mild oxidising agents. All common monosaccharides are reducing sugars. The disaccharides maltose and lactose are reducing sugars. The disaccharide sucrose is a non-reducing sugar.
Why are Hemiacetals reducing sugars?
A hemiacetal form is thus a reducing sugar. In contrast, acetal forms (glycosides) are not reducing sugars, since with base present, the acetal linkage is stable and is not converted to the aldehyde or hemiacetal. The outcome is that in a reducing sugar the anomeric carbon is in an aldehyde or hemiacetal.
Is xylose soluble in water?
properties of xylose. Its molecular weight is 150.130 g/mole and its Melting point is153 °C. Its specific gravity is d204 is 1.525 and its refractive index nD20 is 1.517. Its solubility in water at 20 °C is 117 g per 100 ml of water and its crystals are white.
Is arabinose a carbohydrate?
Arabinose is an aldopentose – a monosaccharide containing five carbon atoms, and including an aldehyde (CHO) functional group.