Assertion (A): To detect presence of halogens in an organic compound,
some dilute nitric acid is added.
Reason (R): Dilute HNO3 destroys Na2S and NaCN by oxidation 

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:  Qualitative Analysis of Organic Compounds |
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Assertion : C6H14 and C5H12 both can show chain isomerism 

Reason : C6H14 and C5H12 both form 3 chain isomers each, respectively 

1. Both assertion and reason are true, and reason is the correct explanation of the assertion 

2. Both assertion and reason are true, but reason is not correct explanation of the assertion 

3. Assertion is true but reason is false 

4. Both assertion and reason are false 

Subtopic:  Structural Isomers |
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Statement I: \(HCOOH\) is more acidic than \(C_6H_5COOH.\)
Statement II: \(CH_3COOH\) is less acidic than \(C_6H_5COOH.\)
 
1. Statement I is correct and Statement II is incorrect.
2. Statement I is incorrect and Statement II is incorrect.
3. Statement I is correct and Statement II is correct.
4. Statement I is incorrect and Statement II is correct.
Subtopic:  Acidic & Basic Character |
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Select the correct statement.
(i) Delocalisation of \(\sigma\)-electron is hyperconjugation.
(ii) Delocalisation of \(\pi\)-electron is resonance.
(iii) Permanent partial displacement of \(\sigma\)-electron is inductive effect.

1.  i & iii
2.  ii & iii
3.  i & ii
4.  i, ii, iii
Subtopic:  Electron Displacement Effects |
 61%
From NCERT
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Statement I: A mixture of chloroform and aniline can be separated by simple distillation.
Statement II: When separating aniline from a mixture of aniline and water by steam distillation aniline boils below its boiling point. 

The correct option is:

1. Statement I is false but Statement II is true.
2. Both Statement I and Statement II are false.
3. Statement I is true but Statement II is false.
4. Both Statement I and Statement II are true.
Subtopic:  Purification of Organic Compounds |
 67%
From NCERT
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Match the following:

Test/Method Reagent
(i) Lucas Test (a) C6H5SO2Cl/aq. KOH
(ii) Dumas method (b) HNO3/AgNO3
(iii) Kjeldahl's method (c) CuO/CO2
(iv) Hinsberg Test (d) Conc. HCl and ZnCl2
(e) H2SO4

1. (i)-(d). (ii)-(c), (iii)-(e), (iv)-(a)

2. (i)-(b), (ii)-(d), (iii)-(e), (iv)-(a)

3. (i)-(d), (ii)-(c), (iii)-(b), (iv)-(e)

4. (i)-(b), (ii)-(a), (iii)-(c), (iv)-(d)

Subtopic:  Quantitative Analysis of Organic Compounds |
 84%
From NCERT
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Match column I with Column-II.
 
Column I
(Molecules)
COLUMN II
(Nature of molecule) 
a. (CH3)3N: i. Electrophile
b. \(H_3C-\overset{+}{C}=O\) ii. Nucleophile
c. \(\overset{+}{N}O_2\)
d. H2N:-
 
a b c d
1. ii ii ii i
2. ii ii ii ii
3. ii i i ii
4. ii i ii ii
Subtopic:  Nucleophile & Electrophile |
 84%
From NCERT
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Match the items in column I with the items in column II.

Column I Column II
a. o-Ethylanisole i.
b.  p-Nitroaniline ii.
c. 2,3 - Dibromo -1 - phenylpentane iii.
d. 4-Ethyl-1-fluoro-2-nitrobenzene iv.


The correct option is-
1. a=ii; b=iv; c=i; d=iii
2. a=ii; b=i; c=iv; d=iii
3. a=iv; b=i; c=ii; d=iii
4. a=ii; b=iii; c=iv; d=i

Subtopic:  Nomenclature |
 92%
From NCERT
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Match the structures given in column I with the corresponding IUPAC names given in column II and choose the correct option.

Column I Column II
A. i. Pent-4-en-2-ol
B. ii.  Cyclohex-2-en-1-ol
C. iii. 6-Hydroxy-heptanal
D. iv. 2-Chlorohexane
E. v. 3- Nitrocyclohexene

1. A=iii; B= iv; C=v; D=ii; E=i
2. A=iii; B= iv; C=ii; D=v; E=i
3. A=iv; B= i; C=v; D=iii; E=ii
4. A=iv; B= i; C=ii; D=v; E=iii

Subtopic:  Nomenclature |
 92%
From NCERT
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Match the item in column I with the column II

Column I Column II
a. i.
b. ii.
c. iii.
d. iv.

1. a-ii; b-iv; c-i; d-iii
2. a-iii; b-iv; c-ii; d-i
3. a-iv; b-iii; c-i; d-ii
4. a-i; b-iv; c-ii; d-iii

Subtopic:  Nomenclature |
 92%
From NCERT
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