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Q. No.The correct order of –I effect is:
1. -NR3+ > -OR > -F
2. -F > -NR3+ > -OR
3.-NR3+ > -F > -OR
4. -OR > -NR3+ > -F
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIUPAC name of 
1. 2-Chloro-3-iodo-2-pentene
2. 2-Chloro-3-iodo-3-pentene
3. 2-Iodo-3-chloro-pentene
4. None of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following is most reactive towards electrophilic substitution reaction?
| 1. |  |
2. |  |
| 3. |  |
4. |  |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe chiral centre is absent in:
1. DCH2-CH2-CH2-Cl
2. CH3-CHD-CH2-Cl
3. CH3-CHCl-CH2D
4. CH3-CHOH-CH2-CH3
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe structure of trans-2-hexenal among the following is:
| 1. |  |
| 2. |  |
| 3. |  |
| 4. | None of the above |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe chiral compound among the following is:
| 1. | 2-Methylpentanoic acid | 2. | Pentanoic acid |
| 3. | 4-Methyl pentanoic acid | 4. | None of the above |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPolarisation of electrons in acrolein may be written as:
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct order of stability is:
| 1. | 1–butene > Trans–2–butene > Cis–2–butene |
| 2. | Trans–2–butene > 1–butene > Cis–2–butene |
| 3. | Trans–2–butene > Cis–2-butene > 1–butene |
| 4. | Cis-2–butene > Trans–2–butene > 1–butene |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology2-Butene shows geometrical isomerism due to:
1. Restricted rotation about double bond
2. Free rotation about double bond
3. Free rotation about single bond
4. Chiral carbon
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyDihedral angle in staggered form of ethane is:
1.
2.
3.
4.
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