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Q. No.Match the Oxoacids of Sulphur given in column I with the number of bond given in column II and mark the correct option.
Choose the correct answer from the options given below:
| 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 |
Subtopic: Group 16 - Preparation, Properties & Uses |
68%
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NEET - 2023
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Select the correct option based on the statements below:
| Assertion (A): | ICI is more reactive than I₂. |
| Reason (R): | I-Cl bond is weaker than I-I bond. |
| 1. | (A) is false but (R) is true. |
| 2. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 3. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 4. | (A) is true but (R) is false. |
Subtopic: Group 17 - Preparation, Properties & Uses |
74%
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NEET - 2022
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Given below are two statements:
In the light of the above statements, choose the most appropriate answer from the options given below:
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
| 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
Subtopic: Group 16 - Preparation, Properties & Uses |
From NCERT
NEET - 2022
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The correct order for boiling points of the following compounds is:
| 1. | AsH3 > PH3 > NH3 > SbH3 > BiH3 |
| 2. | BiH3 > SbH3 > NH3 > AsH3 > PH3 |
| 3. | NH3 > PH3 > AsH3 > SbH3 > BiH3 |
| 4. | PH3 > NH3 > AsH3 > SbH3 > BiH3 |
Subtopic: Group 15 - Preparation, Properties & Uses |
61%
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Chlorine shows the bleaching action in the presence of moisture due to the formation of
1. HOCl
2. HOClO
3. H2O2
4. O
Subtopic: Group 17 - Preparation, Properties & Uses |
From NCERT
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The reaction that is a part of large scale industrial preparation of nitric acid is:
| 1. | \(\mathrm{NaNO}_3+\mathrm{H}_2 \mathrm{SO}_4\xrightarrow[500~K, \ 9\text{ bar}]{Pt} \mathrm{NaHSO}_4+\mathrm{HNO}_3\) |
| 2. | \(4 \mathrm{NH}_3+5 \mathrm{O}_2 \text{(from air)}\xrightarrow[500~K, \ 9\text{ bar}]{Pt} 4 \mathrm{NO}+6 \mathrm{H}_2 \mathrm{O}\) |
| 3. | \(4 \mathrm{HPO}_3+2 \mathrm{~N}_2 \mathrm{O}_5\xrightarrow[500~K, \ 9\text{ bar}]{Pt} 4 \mathrm{HNO}_3+\mathrm{P}_4 \mathrm{O}_{10}\) |
| 4. | \(\mathrm{Cu}\left(\mathrm{NO}_3\right)_2+2 \mathrm{NO}_2+2 \mathrm{H}_2 \mathrm{O}\xrightarrow[500~K, \ 9\text{ bar}]{Pt} 4 \mathrm{HNO}_3+\mathrm{Cu}\) |
Subtopic: Group 15 - Preparation, Properties & Uses |
62%
From NCERT
NEET - 2022
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Fluorine is a stronger oxidizing agent than chlorine because:
Choose the most appropriate answer from the options given :
| (a) | F–F bond has a low enthalpy of dissociation. |
| (b) | Flouride ion (F-) has high hydration enthalpy. |
| (c) | Electron gain enthalpy of fluorine is less negative than chlorine. |
| (d) | Fluorine has a very small size. |
| 1. | (a) and (b) only | 2. | (a) and (c) only |
| 3. | (a) and (d) only | 4. | (b) and (c) only |
Subtopic: Group 17 - Preparation, Properties & Uses |
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In the light of the below statements, choose the correct answer from the options given below:
| I: | Acid strength increases in the order given as HF < HCl < HBr < HI. |
| II: | As the size of the elements F, Cl, Br, I increases down the group, the bond strength of HF, HCI, HBr, and HI decreases and so the acid strength increases. |
| 1. | I is correct but II is false. |
| 2. | I is incorrect but II is true. |
| 3. | Both I and II are true. |
| 4. | Both I and II are false. |
Subtopic: Group 17 - Preparation, Properties & Uses |
78%
From NCERT
NEET - 2021
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Choose the incorrect statement among the following regarding noble gases.
| 1. | Noble gases have weak dispersion forces. |
| 2. | Noble gases have large positive values of electron gain enthalpy. |
| 3. | Noble gases are sparingly soluble in water. |
| 4. | Noble gases have very high melting and boiling points. |
Subtopic: Group 18 - Preparation, Properties & Uses |
58%
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NEET - 2021
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In which one of the following arrangements the given sequence is not strictly according to the properties indicated against it?
| 1. | NH3 < PH3 < AsH3 < SbH3 | Increasing acidic character |
| 2. | CO2 < SiO2 < SnO2 < PbO2 | Increasing oxidizing power |
| 3. | HF < HCl < HBr < HI | Increasing acidic strength |
| 4. | H2O < H2S < H2Se < H2Te | Increasing pKa values |
Subtopic: Group 15 - Preparation, Properties & Uses |
63%
From NCERT
NEET - 2021
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