For the following reactions,
(i) CH3CH2CH2Br + KOH
CH3CH=CH2 + KBr + H2O
(ii)
(iii) 
Which of the following statements is correct?
1. (i) is elimination, reaction, (ii) is substitution and (iii) is addition reaction
2. (i) is elimination, (ii) and (iii) are substitution reactions
3. (i) is substitution, (ii) and (iii) are addition reactions
4. (i) and (ii) are elimination reactions and (iii) is addition reaction
(i) CH3CH2CH2Br + KOH
CH3CH=CH2 + KBr + H2O (ii)
(iii)
Which of the following statements is correct?
2. (i) is elimination, (ii) and (iii) are substitution reactions
3. (i) is substitution, (ii) and (iii) are addition reactions
4. (i) and (ii) are elimination reactions and (iii) is addition reaction
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(R= alkyl)
| 1. | Both b and d | 2. | Both a and c |
| 3. | Both a and b | 4. | Both d and a |
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Which among the given molecules can exhibit tautomerism?
1. III only
2. Both I and III
3. Both I and II
4. Both II and III
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With respect to the conformers of ethane, which of the following statements is true?
| 1. | Bond angle changes but bond length remains the same |
| 2. | Both bond angle and bond length change |
| 3. | Both bond angle and bond length remain the same |
| 4. | Bond angle remains the same but the bond length changes |
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The correct statement regarding electrophile is:
| 1. | Electrophile is a negatively charged species and can form a bond by accepting a pair of electrons from another electrophile. |
| 2. | Electrophiles are generally neutral species and can form a bond by accepting a pair of electrons from a nucleophile. |
| 3. | Electrophile can be either neutral or positively charged species and can form a bond accepting a pair of electrons from a nucleophile. |
| 4. | Electrophile is a negatively charged species and can form a bond by accepting a pair of electrons from a nucleophile |
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2. 5-methyl-4-2-en-5-el
3. 3-keto-2-methylhex-5-enal
4. 3-keto-2-methylhex-4-enal
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The most suitable method of separation of 1:1 mixture of ortho and para-nitrophenols is:
1. Chomatography
2. Crystallization
3. Steam distillation
4. Sublimation
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