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Q. No.Which of the following shows the least reactivity towards nucleophilic substitution reaction?
1.
2.
3.
4.
Subtopic: Haloarenes: Directive Influence of Halogen |
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Choose the correct statement among the following about freons.
1. They are used as a cancer medicine.
2. They are chlorofluorocarbon compounds.
3. These are toxic organic compounds.
4. These are flammable compounds.
1. They are used as a cancer medicine.
2. They are chlorofluorocarbon compounds.
3. These are toxic organic compounds.
4. These are flammable compounds.
Subtopic: Dichloromethane, Trichloromethane & Tetrachloromethane |
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In which of the following option the reaction does not match with their correct product?
| 1. |  |
| 2. |  |
| 3. |  |
| 4. |  |
Subtopic: Chemical Properties |
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Consider the following reactions.
The products P & Q in the above reactions are, respectively:
 |
 |
| 1. |  |
2. |  |
| 3. |  |
4. |  |
Subtopic: Chemical Properties |
63%
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The compound having two chiral centres is:
1. 2-Bromo-3-deuterobutane.
2. 1-Bromo-2-deuterobutane.
3. 1-Bromo-3-deuterobutane.
4. 1-Bromo-4-deuterobutane.
1. 2-Bromo-3-deuterobutane.
2. 1-Bromo-2-deuterobutane.
3. 1-Bromo-3-deuterobutane.
4. 1-Bromo-4-deuterobutane.
Subtopic: Isomerism & Chirality |
86%
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Match the reactions in List-I with their corresponding products in List-II:
1. A – Q, B – P, C – R, D - S
2. A – P, B – Q, C – R, D - S
3. A – S, B – R, C – Q, D - P
4. A – R, B – S, C – P, D - Q
| List-I (Reactions) | List-II (Products) | ||
| A. | Wurtz reaction | P. |  |
| B. | Fitting reaction | Q. |  |
| C. | Wurtz-Fitting reaction | R. |  |
| D. | Sandmeyer reaction | S. |  |
2. A – P, B – Q, C – R, D - S
3. A – S, B – R, C – Q, D - P
4. A – R, B – S, C – P, D - Q
Subtopic: Chemical Properties |
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Which of the following compound contain maximum number of chlorine atoms?
1. Chloropicrin
2. Chloral
3. Gammaxene
4. Freon-12
1. Chloropicrin
2. Chloral
3. Gammaxene
4. Freon-12
Subtopic: Iodoform, Freons & DDT |
71%
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Subtopic: Isomerism & Chirality |
61%
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How many asymmetric carbons are present in the given structure of Vitamin C?
1. 3
2. 4
3. 2
4. 1
1. 3
2. 4
3. 2
4. 1
Subtopic: Isomerism & Chirality |
64%
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The decreasing order of the boiling points for the following compounds is given as :
1. I > II > III > IV
2. I > II > IV > III
3. III > IV > II > I
4. III > IV > I > II
1. I > II > III > IV
2. I > II > IV > III
3. III > IV > II > I
4. III > IV > I > II
Subtopic: Introduction and Physical Properties |
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