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Why is HCl predominantly covalent in the...

Why is HCl predominantly covalent in the gaseous state but is ionic in aqueous solution ?

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In HCl, the electronegativity difference in Cl and H atoms (3.0- 2.1) us 0.9. Therefore, it is perdominantly covalent in the gaseous state. When dissolved in water which is of polar nature, there is an attraction between the atom of the acid and polar `H_2O` molecules. Energy is released during attraction. This helps in the ionization of the acid. Therefore, HCl is ionic in aqueous solution
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NARAYNA-CHEMICAL BONDING AND MOLECULAR STRUCTURE-EXERCISE -4
  1. Why is HCl predominantly covalent in the gaseous state but is ionic in...

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  2. Among the following ions the p pi- d pi overlap could be present in

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  3. Nitrogen forms N(2) but phosphorous when forms P(2) gets readily conve...

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  4. The correct sequence of increasing covalent character is represented b...

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  5. Which of the following will no give a precipate with AgNO3?

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  6. AlCl3 anhydrous is covalent but AlCl3. 6H2O is ionic because

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  7. The correct stability order of the following resonance structures is ...

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  8. In PO(4)^(3-) ion the formal charge on the oxygen atom of P-O bond is

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  9. Arrange LiF, NaF, KF, RbF and CsF in order of increasing lattice energ...

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  10. Which of the following are arranged in the decreasing order of dipole ...

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  11. The dipole moment of is 1.5 D. The dipole moment of is:

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  12. The bond angle in H2S is

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  13. If H - X bond length is 2Å and H - X has dipole moment 5.12 xx 10^(-30...

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  14. Arrange the following compounds in order of increasing dipole moment ....

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  15. Which one of the following arrangements of molecules is correct on the...

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  16. Which of the following molecule has highest bond energy ?

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  17. In NO(3)^(-) ion, the number of bond pair and lone pair of electrons o...

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  18. Among the following the pair in which the two species are not isostruc...

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  19. In a regular octahedral molecule MX(6) the number of X - M - X bonds ...

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  20. In an octahedral structure , the pair of d orbitals involved in d^(2)...

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  21. In correct statement about the structure of PCl5

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