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Which is the stronger acid a H2S or B H2Se?
In binary acids such as H2S and H2Se, the H–Se bonds is longer than the H–S bonds as Se is larger than S. The H–Se bond is therefore weaker than the H–S bond and H2Se is thus a stronger acid than H2S.
Which is more acidic h20 or H2Te?
Actually the acidic strength increases in the order H2O. Down the group basicity increases thus the stability or strength of conjugate base increases and the bond between H and element of group 16.
Why H2S is more acidic than H2O?
We know that an acid is a species which will donate its proton that is the ${{H}^{+}}$ ion. Therefore among hydrogen sulphide and water, the more acidic is the one which will release its proton readily. We know that oxygen is more electronegative than sulphur thus the H-O bond is stronger than the S-H bond.
Which of the following is most acidic H2Te H2S H2Se H2Te?
H2Te is the most acidic among the three.
Which is stronger H2S or H2Te?
Hydrotelluric acid, H2Te, is a stronger acid than H2S because Te has a larger radius than S. In a series of acids that have the same central atom, acid strength increases with the.
Which among the following is more acidic H2O H2S?
H2S is more acidic than H2O | Chemistry Questions.
Which among the following is more acidic H20 H2S?
Oxygen is more electronegative than sulphur. Yet H2S is acidic while H2O is neutral. This is becaus…
Which of the following order is wrong H2O H2S H2Se H2Te?
Answer: The thermal stability of the hydrides of group 16 elements decreases down the group, i.e., H2O > H2S > H2Se > H2Te > H2Po.
Which of the following has lowest boiling point H2O H2S H2Se H2Te?
Decreasing order of boiling point: H2O > H2Te > H2Se > H2S. H2S has the lowest boiling point. As the molar mass increases boiling point of the hydrides increases except H2O. The exception of water is due to intermolecular hydrogen bonding among the water molecules.
What is the difference between H2Te and H2S?
Te belongs to 5th period while S belongs to 3rd period. As we go down the group, the bond dissociation enthalpy DECREASES. Therefore, acidic character increases. H2Te has less bond dissociation enthalpy than H2S .
Which is more acidic – HCOOH or h2s04?
H2S04 is more acidic than HCOOH. Because it is based on extent of ionization of acids. Under similar conditions sulphuric acid solution ionizes completely to release H+ ions but formic acid solution do not ionizes complerely.
Why are S2 – ‘ and S2-‘ less likely to be ionic?
The electronegativities of S, Se, Te are low hence their compounds even with most electropositive elements are not more than 50\% ionic. Hence S 2– ‘, Se 2– ‘ and Te 2– ‘ are less probable. Being a metal Po does not form Po 2+ ion at all. (b) Positive oxidation state: Oxygen does not show positive oxidation state except OF 2 (O = + 2).