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Classification Of Elements And Periodicity In Properties Free Doubts and Solutions

CBSE - XI Science - Chemistry - Classification of Elements and Periodicity in Properties

DEFINE lattice enthalpy

Asked by Ibrahim Mohammed 22nd February 2015, 1:05 AM
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CBSE - XI Science - Chemistry - Classification of Elements and Periodicity in Properties

ACCOUNT FOR THE FOLLOWING:-
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
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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
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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 

Asked by Sukhtej Sethi 27th April 2014, 8:46 AM
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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? Is there any general rule to determine oxidizing power and acid strength of oxyacids of any element?

Asked by Renuka Ganesh 12th April 2014, 4:54 PM
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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
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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
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CBSE - XI Science - Chemistry - Classification of Elements and Periodicity in Properties

Q1. What is the basic difference between transition and non-transition metals and the reason for the difference?

Asked by BIPLAV BIJOY GOSWAMI 18th March 2014, 8:16 PM
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CBSE - XI Science - Chemistry - Classification of Elements and Periodicity in Properties

Sir/Madam what do u mean by covalency?

pls answer it fast i have exams tmrw

Asked by 6th March 2014, 6:19 PM
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