Q. No.| List-I(Oxoacids of Sulphur) | List-II(Bonds) | ||
| A. | Peroxodisulphuric acid | I. | Two S-OH, Four S=O, One S-O-S |
| B. | Sulphuric acid | II. | Two S-OH, One S=O |
| C. | Pyrosulphuric acid | III. | Two S-OH, Four S=O, One S-O-O-S |
| D. | Sulphurous acid | IV. | Two S-OH, Two S=O |
| Options: | A | B | C | D |
| 1. | III | IV | II | I |
| 2. | I | III | II | IV |
| 3. | III | IV | I | II |
| 4. | I | III | IV | II |
| Statement I: | The boiling points of the following hydrides of group 16 elements increase in the order \(\mathrm{H}_{2} \mathrm{O}<\mathrm{H}_{2} \mathrm{~S}<\mathrm{H}_{2} \mathrm{Se}<\mathrm{H}_{2} \mathrm{Te} \) |
| Statement II: | The boiling points of these hydrides increase with the increase in molar mass. |
1. I is incorrect but II is correct
2. Both I and II are correct
3. Both I and II are incorrect
4. I is correct but II is incorrect
The correct thermal stability order for \(\mathrm{H}_2 \mathrm{E , E}=\mathrm{O}, \mathrm{S}, \mathrm{Se}, \mathrm{Te} \text { and } \mathrm{Po}\)
among the following is:
1. \(\mathrm{H}_2 \mathrm{Se}<\mathrm{H}_2 \mathrm{Te}<\mathrm{H}_2 \mathrm{Po}<\mathrm{H}_2 \mathrm{O}<\mathrm{H}_2 \mathrm{~S}\)
2. \(\mathrm{H}_2 \mathrm{~S}<\mathrm{H}_2 \mathrm{O}<\mathrm{H}_2 \mathrm{Se}<\mathrm{H}_2 \mathrm{Te}<\mathrm{H}_2 \mathrm{Po}\)
3. \(\mathrm{H}_2 \mathrm{O}<\mathrm{H}_2 \mathrm{~S}<\mathrm{H}_2 \mathrm{Se}<\mathrm{H}_2 \mathrm{Te}<\mathrm{H}_2 \mathrm{PO}\)
4. \(\mathrm{H}_2 \mathrm{Po}<\mathrm{H}_2 \mathrm{Te}<\mathrm{H}_2 \mathrm{Se}<\mathrm{H}_2 \mathrm{~S}<\mathrm{H}_2 \mathrm{O}\)
Which of the following reactions does not exhibit the oxidising behaviour of H2SO4?
1. Cu + 2H2SO4 → CuSO4 + SO2 + 2H2O
2. 3S + 2H2SO4 → 3SO2 + 2H2O
3. C + 2H2SO4 → CO2 + 2SO2 + 2H2O
4. CaF2 + H2SO4 → CaSO4 + 2HF
Which of the following is the incorrect statement?
1. PH5 and BiCl5 do not exist
2. pπ - dπ bonds are present in SO2
3. SeF4 and CH4 have the same shape
4. \(I_{3}^{+}\)
Which of the statements given below is incorrect?
1. is an anhydride of perchloric acid
2. molecule is bent
3. ONF is isoelectronic with
4. is an oxide of fluorine
The acidity of diprotic acids in aqueous solution increases in the order:
1. H2S < H2Se < H2Te
2. H2Se < H2S < H2Te
3. H2Te < H2S < H2Se
4. H2Se < H2Te < H2S
The given sequence among the following arrangements that is not strictly according to the property indicated against it.
| 1. | H2O < H2S < H2Se < H2Te : \(\small{i n c r e a sin g \ p K_{a}\ v a l u e s}\) |
| 2. | \(\small{N H_{3} < P H_{3} < A s H_{3} < S b H_{3} : i n c r e a sin g \ a c i d i c \ c h a r a c t e r}\) |
| 3. | \(\small{C O_{} < S i O_{} < S n O_{} < P b O_{2} : i n c r e a sin g \ o x i d i sin g \ p o w e r} \) |
| 4. | \(\small{H F < H C l < H B r < H I : i n c r e a sin g \ a c i d i c \ s t r e n g t h} \) |
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