In sulphur estimation, 0.157 g of an organic compound gave 0.4813 g of barium sulphate. The percentage of sulphur in the compound is-

1. 39.10 %

2. 48.13 %

3. 42.10 %

4. 52. 43 %

Subtopic:  Qualitative Analysis of Organic Compounds |
 65%
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During estimation of nitrogen present in an organic compound, the ammonia evolved from 0.5 g of the compound in Kjeldahl’s estimation of nitrogen, neutralized 10 mL of 1 M H2SO4. The percentage of nitrogen in the compound is-

1. 46.0 %

2. 51.0%

3. 56.0%

4. 49.0%

Subtopic:  Quantitative Analysis of Organic Compounds |
 73%
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The correct hybridization states of carbon atoms in C6His/are:

1.  sp

2. sp

3. sp3

4.  All of the above

Subtopic:  Hybridisation & Structure of Carbon Compounds |
 83%
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The correct hybridization states of carbon atoms in the following compound are -     C1H2=C2H-C3N
 

1. C1= sp , C2= sp, C3= sp2 2. C1= sp2 , C2= sp,  C 3 = sp3
3. C1= sp2 , C2= sp,  C 3 = sp 4. C1= sp3 , C2= sp,  C 3 = sp3
Subtopic:  Hybridisation & Structure of Carbon Compounds |
 91%
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The correct hybridization states of carbon atoms marked as 1,2,3 in the following compound are -  C1H3-C 2H=C3H2

1. C1= sp , C2= sp, C3= sp2 2. C1= sp2 , C2= sp, C3= sp3
3. C1= sp3 , C2= sp, C3= sp2 4. C1= sp3 , C2= sp, C3= sp3
Subtopic:  Hybridisation & Structure of Carbon Compounds |
 93%
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C1H2 =C2=O

The correct hybridization states of carbon atoms in the above compound are - 

1. C1= sp , C2= sp3 2. C1= sp, C2= sp
3. C1= sp, C2= sp 4. C1= sp , C2= sp2
Subtopic:  Hybridisation & Structure of Carbon Compounds |
 92%
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Chlorine atom can be classified as -

1. Carbocation 2. Nucleophile
3. Electrophile 4. Carbanion
Subtopic:  Nucleophile & Electrophile |
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The number of σ and π bonds in the molecule CH2Cl2 are -

1.  2 = (σC-Cl) , 1= (σC-H) , and 1= π

2. 2 = (σC-Cl) , 2= (σC-H) , and 0= π

3. 2 = (σC-Cl) , 1= (σC-H) , and 1= π

4. 2 = (σC-Cl) , 1= (σC-H) , and 1= π

Subtopic:  Hybridisation & Structure of Carbon Compounds |
 93%
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The number of σ and π bonds in the molecule C6H12 are-

1. 7 = (σC-C) , 11 =  (σC-H), and 0= π 

2. 6 = (σC-C) , 12 =  (σC-H), and 0= π 

3. 12 = (σC-C) , 6 =  (σC-H), and 1= π 

4. 5 = (σC-C) , 13 =  (σC-H), and 1= π 

Subtopic:  Hybridisation & Structure of Carbon Compounds |
 63%
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The number of σ and π bonds in the molecule C6H6 are -

1. 6 C – C sigma ( σ C - C )  bonds, 5 C–H sigma ( ( σ C - H )  bonds, and 3 C=C pi ( π C - C ) 
2. 6 C – C sigma ( σ C - C )  bonds, 5 C–H sigma ( ( σ C - H )  bonds, and 2 C=C pi ( π C - C ) 
3. 6 C – C sigma ( σ C - C )  bonds, 6 C–H sigma ( ( σ C - H )  bonds, and 3 C=C pi ( π C - C ) 
4. 6 C – C sigma ( σ C - C )  bonds, 6 C–H sigma ( ( σ C - H )  bonds, and 2 C=C pi ( π C - C ) 

Subtopic:  Hybridisation & Structure of Carbon Compounds |
 88%
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