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  • 1 answers
To form iron we heat iron oxide with carbon in the form of coke.
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Cbse Ncert 8 years ago

An element is made of one type of atoms where as compounds contain combination of elements.
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Shivangi Sharma 8 years ago

During the addition of an unsymmetrical reagent of the type HX to an unsymmetrical alkene the negative part (X ) of the reagent goes to that carbon atom of the double bond which carries smaller no of hydrogen atoms whereas the positive part (H) of the reagent gets attached to that carbon atom of the double bond which contains larger no. Of hydrogen atoms....
In unsymmetrical alkene negative addendum is added to that carbon atom which has less no. Of carbon atom
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One reason is due to give taste in soft drinks. When we open bottle, CO2 is removed and after some time the taste is change.

Vivek Ranjan 8 years ago

Bcoz Co2 help us to stay from oxidation due to high pressure... Also non reactive so preserve for long time.....
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Sahil Sharm 8 years ago

Since H2SO4 is an oxidizing agent, it oxidizes HI (produced in the reaction to I2). As a result, the reaction between alcohol and HI to produce alkyl iodide cannot occur. Therefore, sulphuric acid is not used during the reaction of alcohols with KI. Instead, a non-oxidizing acid such as H3PO4 is used.
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Priyanka Bansal 8 years ago

It is a example of crystalline solid
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Mn2+ is stable. Due to this it is required more energy to convert Mn3+. But In case of Cr2+ is not stable so it is required not much more energy to convert Cr3+.
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Prashant Tiwari 8 years ago

Due to short/negligble intermolecullar distance as well as high intermolecullar forcesbetween the particles..
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Mehak Suidui 8 years ago

Gangue is the unwanted or valueless material found with valuable ore or mineral
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In dilution the ions of weak electrolyte is free to move so the conductivity is increase. But in strong electrolyte molar conductivity is decrease because the ions is much more free.
Generally by dilution, the concentration of solution is increase .Due to this the strong electrolyte molar conductivity is decrease but it does not affect conductivity of weak electrolyte.
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Tanisha Brar 8 years ago

Because it produce new and large free radical
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Aakash Kumar 8 years ago

Compound with benzene ring is aromatic
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Basisity is depend no of electron lose by element and time taken to lose OH ion. Generally if size of element is large they easily lose electron and more basisity.

Priya Priya 8 years ago

No. If o-h bonds gives basisity
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Rahul Agrawal 8 years ago

Radius ratio is used to find coordination no. In solids
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Gehma Anand 8 years ago

An intangible called memory... But yes the following could be a method.. 1. Group wise: the best method so far using the conventional songs made so far 2. I remember all the names till z=20 and then a song following it made by me.
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3 mole of Fe3+ gain 7 electrons and form Fe2+. I= 2A, we use formula Q=ne Q= 7 x (1.6 x 10^-19) Q= 11.2 x 10^-19 We use formula Q=It And get answer
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Yashika Jain 8 years ago

University Chemistry by Bruce mahan for physical Chemistry Organic Chemistry by Morrison and boyd for organic Chemistry Concise inorganic Chemistry by J.d.lee for inorganic Chemistry Modern approach to Chemical calculations by R. C Mukherjee

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