Q. No.The correct order of strengths of the carboxylic acids :-
(a) I>II>III
(b) II>III>I
(c) III>II>I
(d) lI>I>IlI
(a) I>II>III
(b) II>III>I
(c) III>II>I
(d) lI>I>IlI
The correct statement regarding the comparison of staggered and eclipsed conformations of ethane is:
| 1. | The eclipsed conformation of ethane is more stable than staggered conformation because eclipsed conformation has no torsional strain |
| 2. | The eclipsed conformation of ethane is more stable than staggered conformation even though the eclipsed conformation has a torsional strain |
| 3. | The staggered conformation of ethane is more stable than the eclipsed conformation because staggered conformation has no torsional strain |
| 4. | The staggered conformation of ethane is less stable than eclipsed conformation because staggered conformation has torsional strain |
Which among the given molecules can exhibit tautomerisrn?
1. III Only
2. Both I and III
3. Both Iand II
4. Both II and III
The correct order of acidity among the following is:
1. CH2=CH2 >CH≡CH > CH3C≡CH > CH3-CH3
2. CH≡CH > CH3-C≡CH > CH2=CH2 >CH3-CH3
3. CH≡CH > CH2=CH2 > CH3-C≡CH > CH3-CH3
4. CH3-CH3 > CH2=CH2 > CH3-C≡CH > CH≡CH
Which of the following statements is true regarding the conformers of ethane?
| 1. | Bond angle remains the same but bond length changes. |
| 2. | Bond angle changes but bond length remains the same. |
| 3. | Both bond angle and bond length change. |
| 4. | Both bond angle and bond length remain the same. |
The IUPAC name of the above mentioned compound is-
1. 3-Ket-2-methylhex-4-enal
2. 5-Formylhex-2-en-3-one
3. 5-Methyl-4-oxohex-2-en-5-al
4. 3-Keto-2-methylhex-4-enal
1. Chromatography
2. Crystallization
3. Steam distillation
4. Sublimation
The IUPAC name of the given compound is:
1. 3-keto-2-methylhex-4-enal
2. 5-formylhex-2-en-3-one
3. 5-methyl-4-2-en-5-el
4. 3-keto-2-methylhex-5-enal
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. | Electrophiles 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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