H2O is a liquid while inspite of a higher molecular mass, H2S is a gas. Explain.
1 Answers
Talk Doctor Online in Bissoy App
Verify by calculating that 5 mole of CO2 and 5 mole of H2S do not have the same mass. (Atomic mass of C = 12 u, O = 16 u, H = 1 u, S = 32 u)
Molecular mass of CO2 = 1(C) + 2(O) = 1(12) + 2(16) = (1 × 12) + ( 2 × 16) = 44 u 5 mole of CO2 = 5 × 44 = 220 gm Molecular mass...
1 Answers 1 views
Explain why : (a) H2S is more acidic than H2O. (b) Two S O bonds in SO2 are identical. (c) SF6 is inert and stable but SF4 is reactive.
[Hint : (iii) Because six F atoms protect the sulphur atom from attack by any reagent due to steric hindrance but four F atoms in SF4 cannot offer much steric hindrance, hence...
1 Answers 1 views
Explain why inspite of nearly the same electronegativity, oxygen forms hydrogen bonding while chlorine does not.
Both chlorine and oxygen have almost the same electronegativity values, but chlorine rarely forms hydrogen bonding. This is because in comparison to chlorine, oxygen has a smaller size and as...
1 Answers 1 views
Why is H2O a liquid and H2S a gas?
H2O has oxygen as the central atom. Oxygen has smaller size and higher electronegativity as compared to sulphur. Therefore, there is extensive hydrogen bonding in H2O, which is absent in...
1 Answers 1 views
Ti(H2O)6]3+ is coloured while [Sc(H2O)6]3+ is colourless. Why ?
[Ti(H2O)6]3+ : In this core Ti+3 has one unpaired e- while Sc+3 does not has any unpaired electron.
1 Answers 2 views
Ti(H2O)6]3+ is coloured while [Sc(H2O)6]3+ is colourless. Why ?
1 Answers
1 views
Higher working capital usually results in (a) higher current ratio, higher risk and higher profits
(a) Working capital of a firm refers to the amount of current assets which are in excess over current liabilities. If a company has a higher working capital then there will...
1 Answers 1 views
Assertion : Bond angle of H2S is smaller than H2O. Reason : Electronegativity of the central atom increases, bond angle decreases.
(c) Bond angle of H2S (92°) < H2O (104°31). As the electronegativity of the central atom decreases, bond angle decreases. In the present case, S is less electronegative than oxygen....
1 Answers 1 views
How would you account for the following: (i) H2S is more acidic than H2O.
(i) This is because bond dissociation enthalpy of H—S bond is lower than that of H—O bond. (ii) This is because two bonds share a double bond in the resonance hybrid...
1 Answers 1 views
Which is more acidic and why, H2O or H2S?
H2S, due to low bond dissociation enthalpy of H–S bond.
1 Answers 1 views