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How does the ionisation energy of 1st group elements vary ?
How does the ionisation energy of 1st group elements vary ?
Updated On: Jun 15, 2022
- increases down the group
- decreases down the group
- remains unchanged
- variation is not regular
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The Correct Option is B
Solution and Explanation
Coinage metals are Cu, Ag, Au. Their outermost electronic configurations are (n-1) $d^{10}\, ns^1$
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Concepts Used:
Haloalkanes and Haloarenes - Classification
Classification of Haloalkanes and Haloarenes are as follows:
Haloalkanes and Haloarenes are Classified on the Basis of the Number of Halogen Atoms:
These are further classified as mono, di, or polyhalogen (tri-,tetra-, etc.) compounds depending on whether they contain one, two or more halogen atoms in their structures. For example;
- Monohaloalkane
- Dihaloalkane
- Trihaloalkane
Haloalkanes and Haloarenes are Classified on Compounds Containing sp3 C—X Bond (X= F, Cl, Br, I)
This class includes:
- Alkyl halides or haloalkanes (R—X)
- Allylic halides
- Benzylic halides
Haloalkanes and Haloarenes are Classified on Compounds Containing sp2 C—X Bond
This class includes:
- Vinylic halides
- Aryl halides
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