Given below are two statements: 
 
Assertion (A): ICl is more reactive than I2 .
Reason (R):  I−Cl bond in ICl is weaker than I−I bond in I2

 
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 18 - Preparation, Properties & Uses |
 85%
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Statement 1: SO2 is a sphybridised molecule.
Statement 2: Two S−O bonds in SO2 are not equal in length.
1. Statement 1 is True, Statement 2 is False.
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
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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
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Given below are two statements: 
Assertion (A): When PCl5 is heated then PCl3 and Cl2 are obtained as products.
Reason (R): PCl5 gives POCl3 with water.
 
 
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 15 - Preparation, Properties & Uses |
 77%
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Given below are two statements: 
 
Assertion (A): Bond angle in PH4is higher than that in PH3
Reason (R): Lone pair-bond pair repulsion is stronger in PH3 than bond pair-bond pair repulsion in PH4+ .

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 15 - Preparation, Properties & Uses |
 80%
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 The correct statement(s) among the following is -

a. Aqua-regia is prepared by mixing conc. \(HCl \)  and conc. \(HNO_3 \) in 3:1 (v/v) ratio
b. The yellow colour of aqua-regia is due to the presence of \(NOCl \) and \(Cl_2 \)
c. Reaction of gold with aqua-regia produces an anion having Au in +3 oxidation state. 
d. Reaction of gold with aqua-regia produces \(NO_2 \) in the absence of air

1. Only a and b are correct
2. Only c and d are correct.
3. a, b, and c are correct
4. a, b, c, and d are correct
Subtopic:  Group 16 - Preparation, Properties & Uses | Group 15 - Preparation, Properties & Uses |
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Match the substance given in Column I with the application given in Column II and mark the appropriate option:

Column I (Substance) Column II (Application)
A. Liquid helium (i) Chlorinating agent
B. Argon (ii) Inert atmosphere (metallurgy)
C. PCl5 (iii) Cryogenics
D.  P4O10 (iv) Dehydrating agent 
 
A B C D
1. (iii) (ii) (i) (iv)
2. (iii) (iv) (i) (ii)
3. (ii) (iii) (i) (iv)
4. (ii) (iv) (i) (iii)
Subtopic:  Group 17 - Preparation, Properties & Uses | Group 15 - Preparation, Properties & Uses |
 78%
From NCERT
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Select the correct option based on the statements below:
 
Assertion (A): ICl 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 |
 75%
From NCERT
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Given below are two statements:
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.
In the light of the above statements, choose the most appropriate answer from the options given below:
1. Statement I is incorrect but Statement II is correct 
2. Both Statement I and Statement II are correct 
3. Both Statement I and Statement II are incorrect 
4. Statement I is correct but Statement II is incorrect
Subtopic:  Group 16 - Preparation, Properties & Uses |
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Assertion (A):


On hydrolysis, PCl3 produces a dibasic oxyacid of phosphorous. 

Reason (R): H3PO is a dibasic acid. 
 
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. Both (A) and (R) are False.
Subtopic:  Group 15 - Preparation, Properties & Uses |
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