The silver sulphate solution is used to separate:

1. nitrate and bromide

2. nitrate and chlorate

3. bromide and iodide

4. nitrate and nitrite

Subtopic:  Qualitative Analysis of Organic Compounds |
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Soda extract is prepared by-

1. Fusing soda and mixture of hydrocarbons, and then extracted with water

2. Dissolving NaHCO3 and mixture of hydrocarbons in dil. HCl

3. Boiling Na2COand mixture of hydrocarbons in dil. HCl

4. Boiling Na2COand mixture of hydrocarbons in distilled water

Subtopic:  Qualitative Analysis of Organic Compounds |
From NCERT
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The most stable carbocation among the following is:

1. 2.
3. 4.
Subtopic:  Reaction Intermediates ; Preparation & Properties |
 76%
From NCERT
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The compound which forms one monochloro product when treated with chlorine is:

(1) n-pentane

(2) isopentane

(3) neo-pentane

(4) None of these

Subtopic:  Structural Isomers |
 73%
From NCERT
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Among the following anions (a) CH3, (b) NH2, (c) OH-, (d) F-, the order of basicity is:

1. a > b > c > d

2. b > a > c > d

3. c > b > a > d

4. c > a > b > d

Subtopic:  Nucleophile & Electrophile |
 55%
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The electromeric effect in organic compounds is a

1. Temporary effect

2. Permanent effect

3. Electromeric effect is only observed in inorganic molecules

4. None of the above

Subtopic:  Electron Displacement Effects |
 79%
From NCERT
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The arrangement in decreasing order of stability of CH3C2H5,(CH3)2CH and (CH3)3 C free radicals is-

1. CH3C2H5 > (CH3)2CH > (CH3)3 C  

2. (CH3)3 C > (CH3)2CH > C2H5CH3

3. C2H5CH3 > (CH3)2CH > (CH3)3 C

4. (CH3)3 C > (CH3)2CH >  CH3  > C2H5 

Subtopic:  Reaction Intermediates ; Preparation & Properties |
 84%
From NCERT
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The species that contains only three pairs of electrons among the following is-

1. Carbocation 2. Carbanion
3. Free radical 4. None of the above
Subtopic:  Reaction Intermediates ; Preparation & Properties |
 64%
From NCERT
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H2C = O behaves as:

1. Nucleophile

2. Electrophile

3. Both (1) and (2)

4. None of the above 

Subtopic:  Nucleophile & Electrophile |
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Electrophiles are:

1. electron loving species            

2. electron hating species

3. nucleus loving reagents            

4. nucleus hating reagents

Subtopic:  Nucleophile & Electrophile |
 93%
From NCERT
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