The number of σ and π bonds in the molecule 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 ) |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
The correct hybridization states of carbon atoms in the following compound are -
1. | C1= sp , C2= sp3 , C3= sp2 | 2. | C1= sp2 , C2= sp3 , C 3 = sp3 |
3. | C1= sp2 , C2= sp2 , C 3 = sp | 4. | C1= sp3 , C2= sp3 , C 3 = sp3 |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
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 %
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
The correct IUPAC name, among the following, is-
1. | Prop-3-yn-1-ol | 2. | But-4-ol-4-yne |
3. | But-3-ol-2-yne | 4. | But-3-yn-1-ol |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
The chiral compound among the following is:
1. | 2-Methylpentanoic acid | 2. | Pentanoic acid |
3. | 4-Methyl pentanoic acid | 4. | None of the above |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Match Column I with Column II.
Column I | Column II |
A. Dumas method | 1. AgNO3 |
B. Kjeldahl’s method | 2. Silica gel |
C. Carius method | 3. Nitrogen gel |
D. Chromatography | 4. Ammonium sulphate |
Codes
A | B | C | D | |
1. | 3 | 4 | 1 | 2 |
2. | 1 | 2 | 3 | 4 |
3. | 1 | 4 | 3 | 2 |
4. | 4 | 1 | 3 | 2 |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Match the type of mixture of compounds in Column I with the technique of separation/purification given in column II.
Column I | Column II |
A. Two solids which have different solubilities in a solvent and which do not undergo a reaction when dissolved in it | 1. Steam distillation |
B. Liquid that decomposes at its boiling point | 2. Fractional distillation |
C. Steam volatile liquid | 3. Crystallisation |
D. Two liquids that have boiling points close to each other | 4. Distillation under reduced pressure |
Codes
A | B | C | D | |
1. | 3 | 4 | 1 | 2 |
2. | 1 | 2 | 3 | 4 |
3. | 1 | 4 | 3 | 2 |
4. | 4 | 1 | 3 | 2 |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
The addition of HCl to an alkene proceeds in two steps. The first step is the attack of H+ ion on the double bond portion. The same can be shown as-
1. | 2. | ||
3. | 4. | All of these are possible |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
The correct representation involving heterolytic fission of among the following is:
1. | |
2. | |
3. | |
4. |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
The most stable carboxylate ion among the following is-
1.
2.
3.
4.
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.