Assertion (A):  The relative strength of acids can be determined by knowing the value of the dissociation constant.
Reason (R):  It provides the value of [H+] dissolved in the solution.
 
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) and (R) both are false
Subtopic:  Acids & Bases - Definitions & Classification |
 82%
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Given below are two statements: 

Assertion (A): The increasing order or acidity of hydrogen halides is HF<HCI<HBr<HI.
Reason (R): While comparing acids formed by the elements belonging to the same group of the periodic table, H-A bond strength is a more important factor in determining the acidity of an acid than the polar nature of the bond.
 
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:  Acids & Bases - Definitions & Classification |
 83%
From NCERT
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Given below are two statements: 

Assertion (A): H acts as both Bronsted Lowry base as well as Lewis base.
Reason (R): It acts as both  H  acceptor and a lone pair donor.
 
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:  Acids & Bases - Definitions & Classification |
 74%
From NCERT
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Match the following species with the corresponding conjugate acid:

Species Conjugate acid
A.  NH3 1. CO32-
B. HCO3- 2. NH4+
C. H2O 3.H3O+
D. HSO4- 4. H2CO3
5. H2SO4

Codes

A B C D
1. 2 5 1 5
2. 2 4 3 5
3. 5 4 3 2
4. 4 5 3 2
Subtopic:  Acids & Bases - Definitions & Classification |
 95%
From NCERT
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