- 1(current)
Q. No.Select the correct option based on the statements below:
| Assertion (A): | The bond angle in ethers is slightly less than the angle of tetrahedral. |
| Reason (R): | There is repulsion between the two bulky (— R) groups. |
| 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. | (A) is False but (R) is True. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect the correct option based on statements below:
| Assertion (A): | The IUPAC name of the compound is 2-ethoxy-2-methylethane. |
| Reason (R): | In IUPAC nomenclature, ether is regarded as a hydrocarbon derivative in which a hydrogen atom is replaced by —OR or -OAr group [where, R = alkyl group and Ar = aryl group]. |
| 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. | (A) is False but (R) is True. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect the correct option based on statements below:
| Assertion (A): | Ether behave as bases in the presence of mineral acids. |
| Reason (R): | It is due to the presence of lone pairs of electrons on the oxygen atom. |
| 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. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the following:
| List I | List II | ||
| i. | O2N-C6H5-OCH3 (p) | a. | 4-Ethoxy-1,1-dimethylcyclohexane |
| ii. | C2H5OCH2-CH(CH3)2 | b. | 1-Chloro-2-methoxyethane |
| iii. | CH3OCH2CH2Cl | c. | 1-Ethoxy-2-methylpropane |
| iv. |  |
d. | 1-Methoxy-4-nitrobenzene |
| i | ii | iii | iv | |
| 1. | d | c | b | a |
| 2. | c | d | b | a |
| 3. | a | c | b | d |
| 4. | b | c | d | a |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the items of Column I with items of Column II.
|
Column l |
Column ll |
||
| A. |
Reimer-Tiemann reaction |
1. |
Conversion of phenol to o-hydroxysalicylic aid |
| B. |
Kolbe's reaction |
2. |
Heated copper at 573K |
| C. |
Conversion of 2alcohol to a ketone |
3. |
Reaction of an alkyl halide |
| D. |
Williamson's synthesis |
4. |
Conversion of phenol to salicylaldehyde |
Codes:
| A | B | C | D | |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 3 | 4 | 1 | 2 |
| 3. | 1 | 4 | 3 | 2 |
| 4. | 4 | 1 | 2 | 3 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the starting material in Column I with the products formed (Column II) in the reaction with HI.
| Column I |
Column II |
||
| A. |  |
1. |  |
| B. |  |
2. |  |
| C. |  |
3. |  |
| D. |  |
4. |  |
| 5. |  |
| A | B | C | D | |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 3 | 1 | 5 | 2 |
| 3. | 5 | 4 | 3 | 2 |
| 4. | 4 | 5 | 2 | 1 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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