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CBSE - XI Science - Chemistry - Classification of Elements and Periodicity in Properties
How is 25°c converted into 298k
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28th March 2021,
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CBSE - XI Science - Chemistry - Classification of Elements and Periodicity in Properties
Notes of chapter 3 chemistry class 11
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8th September 2019,
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CBSE - XI Science - Chemistry - Classification of Elements and Periodicity in Properties
DEFINE lattice enthalpy
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22nd February 2015,
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CBSE - XI Science - Chemistry - Classification of Elements and Periodicity in Properties
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Mg2+ ion is smaller in size than o2- ion although both have same electronic structure.
Asked by Ibrahim Mohammed
22nd February 2015,
1:04 AM
CBSE - XI Science - Chemistry - Classification of Elements and Periodicity in Properties
How to find wich oxide is nuteral? Can you give an exact position or group in periodic table wich forms the nuteral oxides?
"In general, the electropositive character of the oxide's central atom will determine whether the oxide will be acidic or basicIt is found that more electropositive the central atom the more basic the oxide and more electronegative the central atom, the more acidic the oxide. Electropositive character increases from right to left across the periodic table and increases down the column."
Is this above view is correct then
From my guess the most probably from your answer above the d – block elemens oxide should show the nuteral. But oxides of p-block are showing neutral behaviour, Why?
How to find wich oxide is nuteral? Can you give an exact position or group in periodic table wich forms the nuteral oxides?
"In general, the electropositive character of the oxide's central atom will determine whether the oxide will be acidic or basicIt is found that more electropositive the central atom the more basic the oxide and more electronegative the central atom, the more acidic the oxide. Electropositive character increases from right to left across the periodic table and increases down the column."
Is this above view is correct then
From my guess the most probably from your answer above the d – block elemens oxide should show the nuteral. But oxides of p-block are showing neutral behaviour, Why?
Asked by Vineeth K
4th December 2014,
1:16 PM
CBSE - XI Science - Chemistry - Classification of Elements and Periodicity in Properties
why they was no correct place given for hydrogen in mendeleev's table.
Asked by science field
25th August 2014,
7:16 PM
CBSE - XI Science - Chemistry - Classification of Elements and Periodicity in Properties
give reason for anomalous behavior of oxygen when its size is compared to nitrogen and Florine
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27th April 2014,
8:46 AM
CBSE - XI Science - Chemistry - Classification of Elements and Periodicity in Properties
Asked by Renuka Ganesh
12th April 2014,
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CBSE - XI Science - Chemistry - Classification of Elements and Periodicity in Properties
How to determine the oxidizing power of different acids and their strengths ? For eg. How to determine which acid is stronger - perchloric acid or hypochlorous acid and which of these is a stronger oxidizing agent?
Asked by Renuka Ganesh
11th April 2014,
3:22 PM
CBSE - XI Science - Chemistry - Classification of Elements and Periodicity in Properties
which element has highest electrovalence?
Asked by Aakrati Gawande
26th March 2014,
3:15 PM
