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Yogita Ingle 5 years, 11 months ago
Activation energy
- The minimum quantitiy of external energy required for the conversion of reactant into product or to produce an unstable intermediate is called activation energy. It is E
- Rate of reaction is inversely proportional to the activation energy.
- Therefore, greater value of activation energy leads to lower rate of reaction and increased influence of temperature change on the rate constant.
Posted by Susmita Deb 5 years, 11 months ago
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Posted by Susmita Deb 5 years, 11 months ago
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The monomeric repeating unit of nylon 6 is [NH – (CH2)5 – CO], which is derived from Caprolactam.
The monomeric repeating unit of nylon 6, 6 is [NH – (CH2)6 - NH – CO – (CH2)4 – CO], which is derived from hexamethylene diamine and adipic acid.
Posted by Sujeet Singh 5 years, 11 months ago
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▪▪Amrit▪▪ ❤ 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
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Nucleotide |
Nucleoside |
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The chemical composition of nucleotide consists of a phosphate group, a sugar and a nitrogenous base. |
A nucleoside has a chemical composition that consists of a sugar and a base without the phosphate group. |
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They are one of the major causes for cancer causing agents to this very day. |
They are used as agents in medicine that are primarily used against viruses and cancer causing agents. |
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Some of the major examples of nucleotides are adenosine, guanosine etc. |
Some of the key examples of nucleosides are the same as nucleotides only with the addition of phosphate groups. |
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Posted by Anshika Dwivanshikadwivediedi 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
Skeletal equation would be
{tex}{ Cl }_{ 2 }(aq)+{ SO }_{ 2 }(aq)+{ H }_{ 2 }O(l)\longrightarrow{ Cl }^{ - }(aq)+{ SO }_{ 4 }^{ -2 }(aq){/tex}
Reducing the half eqn is {tex}{ Cl }_{ 2 }(aq)\longrightarrow{ Cl }^{ - }(aq){/tex}
Balance the Cl atoms ,{tex} { { Cl }_{ 2 } } {\longrightarrow2Cl }^{ - }(aq){/tex}
Balance the oxidation number by adding the electrons.
{tex}{ Cl }_{ 2 }(aq)+2{ e }^{ - }\longrightarrow2{ Cl }^{ - }(aq).....(i){/tex}
Oxidation of half equation is{tex} \quad \overset { +4 }{ { SO }_{ 2 }(aq) } \longrightarrow { SO }_{ 4 }^{ -2 }(aq)+\overset { +6 }{ 2{ e }^{ - } } \quad \quad \quad{/tex}
Balance the oxidation number by adding the electrons.
{tex}{ SO }_{ 2 }(aq)\longrightarrow{ SO }_{ 4 }^{ -2 }(aq)+2{ e }^{ - }{/tex}
Balancing the charge by adding H^{ + }ions
{tex}{ SO }_{ 2 }(aq)\longrightarrow{ SO }_{ 4 }^{ -2 }(aq)+4H^{ + }(aq)+2{ e }^{ - }\quad.....(ii){/tex}
Balancing the oxygen atoms by adding the {tex}2 { H }_{ 2 }O{/tex}
Adding both the eqn (i) and eqn (ii), we get
{tex}{ Cl }_{ 2 }(aq)+{ SO }_{ 2 }(aq)+{ 2H }_{ 2 }O(l)\longrightarrow{ 2Cl }^{ - }(aq)+{ SO }_{ 4 }^{ -2 }(aq)+4H^{ + }(aq){/tex}
This is the balanced redox reaction.
Posted by Rudhra Pratap Singh Rathore 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
Chromatography is the technique for the separation, purification, and testing of compounds.
In this process, we apply the mixture to be separated on a stationary phase (solid or liquid) and a pure solvent such as water or any gas is allowed to move slowly over the stationary phase, carrying the components separately as per their solubility in the pure solvent.
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Yogita Ingle 5 years, 11 months ago
Valence band theory
1.Valence band theory use hybrid orbitals and electron pairs for describe bonding .
2. the bond is considered as the metallic
3. All the 5d orbital are not degenerates .
Crystal field theory
1.Crystal field theory consider metal ligand bond to be metallic .
2.it says that ligand is negatively charged and surround positively charged central metal atom .
3. all the 5 d orbitals of the transition metal are degenerates .
Posted by Gaming Zone 5 years, 11 months ago
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Ritwik Choudhary 5 years, 11 months ago
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Kolbe's reaction: When phenol is treated with sodium hydroxide, sodium phenoxide is produced. This sodium phenoxide when treated with carbon dioxide, followed by acidification, undergoes electrophilic substitution to give ortho-hydroxybenzoic acid as the main product. This reaction is known as Kolbe's reaction.
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Roshan Jha 5 years, 11 months ago
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