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Although chlorine and oxygen have nearly...

Although chlorine and oxygen have nearly same electronegativity yet only oxygen from hydrogen bond explain it ?

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Although oxygen and chlorine have about the same electronegativity, their atomic size or covalent radii are much different. Hence, electron density per unit volume on oxygen atom is much higher than that on chlorine atom. Consequently oxygen forms hydrogen bonds while chlorine does not even though both have similar electronegativity.
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Explain why inspite of nearly the same electronegativity, nitrogen forms hydrogen bonding while chlorine does not.

Although fluorine is more electronegative than oxygen, but the ability of oxygen to stabilise higher oxidation states exceeds that of fluorine. Why?

Statement-1 : Nitrogen and oxygen have nearly same size. Statement-2 : Electron-electron repulsions tend to increase the size.

Nitrogen , oxygen and fluorine are the highly electronegative elements. When they are tied to a hydrogen atom to form covalent bond, the electrons of the covalent bond are shifted towards the more electronegative atom.This partially positively charged hydrogen atom forms a bond with the other electronegative atom. This bond is called as hydrogen bond and is weaker than covalent bond.For example, in HF molecule, the hydrogen bond exists between hydrogen atom of one molecule and fluorine atom of another molecule as depicted ---H^(delta+)-F^(delta-)---H^(delta+)-F^(delta-)---H^(delta+)-F^(delta-) Here, hydrogen bond acts as bridge between atoms which holds one atom by covalent bond and the other by hydrogen bond.Hydrogen bond is represented by a dotted line (---) while a solid line represents the covalent bond. Thus, hydrogen bond can be defined as the attractive force which binds hydrogen atom of one molecule with the electronegative atom (F,O and N) of another molecule. What would be correct about bonding in chloral hydrate C Cl_3CH(OH)_2 ?

Nitrogen , oxygen and fluorine are the highly electronegative elements. When they are tied to a hydrogen atom to form covalent bond, the electrons of the covalent bond are shifted towards the more electronegative atom.This partially positively charged hydrogen atom forms a bond with the other electronegative atom. This bond is called as hydrogen bond and is weaker than covalent bond.For example, in HF molecule, the hydrogen bond exists between hydrogen atom of one molecule and fluorine atom of another molecule as depicted ---H^(delta+)-F^(delta-)---H^(delta+)-F^(delta-)---H^(delta+)-F^(delta-) Here, hydrogen bond acts as bridge between atoms which holds one atom by covalent bond and the other by hydrogen bond.Hydrogen bond is represented by a dotted line (---) while a solid line represents the covalent bond. Thus, hydrogen bond can be defined as the attractive force which binds hydrogen atom of one molecule with the electronegative atom (F,O and N) of another molecule. What statement is incorrect about D_2O (solid)

Fill in the blanks with the appropriate word/s If combining atoms of a compound have nearly similar electronegativities the bond between them is _________ [electrovalent/covalent].

Nitrogen , oxygen and fluorine are the highly electronegative elements. When they are tied to a hydrogen atom to form covalent bond, the electrons of the covalent bond are shifted towards the more electronegative atom.This partially positively charged hydrogen atom forms a bond with the other electronegative atom. This bond is called as hydrogen bond and is weaker than covalent bond.For example, in HF molecule, the hydrogen bond exists between hydrogen atom of one molecule and fluorine atom of another molecule as depicted ---H^(delta+)-F^(delta-)---H^(delta+)-F^(delta-)---H^(delta+)-F^(delta-) Here, hydrogen bond acts as bridge between atoms which holds one atom by covalent bond and the other by hydrogen bond.Hydrogen bond is represented by a dotted line (---) while a solid line represents the covalent bond. Thus, hydrogen bond can be defined as the attractive force which binds hydrogen atom of one molecule with the electronegative atom (F,O and N) of another molecule. If boiling point of ortho-nitro phenol and para nitro phenol are t_1 and t_2 respectively and mixture of these two are heated at temperature 't' where 't' is between these two temperature.Vapours will significantly contains

Give reasons for If combining atoms have nearly similar electronegativities the bond between them is covalent.

Assertion : In the formation of water molecule, both hydrogen and oxygen atoms attain octet of electrons. Reason : Oxygen atom forms two ionic or electrovalent bonds with two hydrogen atoms.

If combining atoms of a compound have nearly similar electronegativities the bond between them is ................ (electrovalent/covalent).

CENGAGE CHEMISTRY ENGLISH-APPENDIX INORGANIC VOLUME 2-Exercises
  1. Why are halogens strong oxidising agents?

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  2. Explain why fluorine forms only one oxoacid, HOF.

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  3. Although chlorine and oxygen have nearly same electronegativity yet on...

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  4. Write two uses of ClO(2).

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  5. Why are halogens coloured?

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  6. Write the reactions of F(2) and Cl(2) with water.

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  7. How can you prepare Cl(2) from HCl and HCl from Cl(2)? Write reactions...

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  8. What inspired N. Bartlett for carrying out reaction between Xe and PtF...

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  9. What are the oxidation states of phosphorus in the following:

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  10. Write balanced equations for the following: (i) NaCl is heated wit...

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  11. How are xenon fluorides XeF(2), XeF(4) and XeF(6) obtained?

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  12. With what neutral molecule is ClO^(–) isoelectronic? Is that molecule ...

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  13. How are XeO(3) and XeOF(4) prepared?

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  14. Arrange the following in the order of property indicated for each set:

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  15. Which one of the following does not exist?

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  16. Give the formula and describe the structure of a noble gas which is is...

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  17. Why do noble gases have comparatively large atomic sizes?

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  18. List the uses of neon and argon gases.

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  19. Write down the electronic configuration of: ltBrgt (i) Cr^(3+) (ii)...

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  20. Why are Mn^(2+) compounds more stable than Fe^(2+) towards oxidation t...

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