Select Chapter Topics:
Q. No.What is the correct order of thermal stability of the hydrides of Group 16 elements?
1. H2O < H2S < H2Se < H2Te
2. H2O > H2S > H2Se > H2Te
3. H2O > H2S < H2Se < H2Te
4. H2O > H2S > H2Se < H2Te
Subtopic: Group 16 - Preparation, Properties & Uses |
79%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
H2O is a liquid whereas H2S is a gas because of:
1. Stronger van der Waals force in H2O
2. Stronger hydrogen bonding in H2O
3. Stronger ion-dipole interaction in H2O
4. High dissociation constant of H2O
1. Stronger van der Waals force in H2O
2. Stronger hydrogen bonding in H2O
3. Stronger ion-dipole interaction in H2O
4. High dissociation constant of H2O
Subtopic: Group 16 - Preparation, Properties & Uses |
90%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Subtopic: Group 16 - Preparation, Properties & Uses |
84%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Consider the following reactions,
a. C2H4 + 3O2→ X + 2H2O
b. 4Al+ 3O2 → Z
X and Z are respectively-
1. X = 1 mole of CO2; Z = 4 moles of Al2O3
2. X = 2 moles of ethanoic acid; Z = 2 moles of AlO3
3. X = 2 moles of CO2; Z = 2 moles of Al2O3
4. X = 2 moles of ethanoic acid; Z = 4 moles of Al2O3
Subtopic: Group 16 - Preparation, Properties & Uses |
80%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
| Assertion (A): | O3 acts as a powerful oxidizing agent. |
| Reason (R): | Ozone decomposes readily on heating to give a molecule of oxygen and nascent oxygen. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | (A) is false but (R) is true. |
Subtopic: Group 16 - Preparation, Properties & Uses |
86%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
O3 can be estimated quantitatively by reacting it with among the following compounds:
1. Iodine
2. Potassium iodide.
3. Chlorine.
4. Sodium chloride.
1. Iodine
2. Potassium iodide.
3. Chlorine.
4. Sodium chloride.
Subtopic: Group 16 - Preparation, Properties & Uses |
75%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Correct statement among the following on reaction of sulphur dioxide with an aqueous solution of Fe(III) salt is -
1. Redox reaction occurs
2. Disproportionation reaction occurs
3. Displacement reaction occurs
4. Combination reaction occurs
1. Redox reaction occurs
2. Disproportionation reaction occurs
3. Displacement reaction occurs
4. Combination reaction occurs
Subtopic: Group 16 - Preparation, Properties & Uses |
58%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
| Statement 1: | SO2 is a sp3 hybridised molecule. |
| Statement 2: | Two S−O bonds in SO2 are not equal in length. |
2. Statement 1 is False, Statement 2 is True.
3. Both Statements 1 and Statement 2 are True.
4. Both Statements 1 and Statements 2 are False.
Subtopic: Group 16 - Preparation, Properties & Uses |
55%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Subtopic: Group 16 - Preparation, Properties & Uses |
74%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
The incorrect statement about H2SO4 is:
| 1. | It is used in the fertilizer industry. |
| 2. | It is used in the manufacture of pigments, paints, and detergents. |
| 3. | It is used in the manufacture of storage batteries. |
| 4. | It is a weak dehydrating agent. |
Subtopic: Group 16 - Preparation, Properties & Uses |
86%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Select Chapter Topics:
© 2024 GoodEd Technologies Pvt. Ltd.