How many geometrical isomers are there in but-2- ene?

1. 2 
2. 1 
3. 4 
4. 3

Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
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Consider the following sequence of reactions and identify the unknown reagents (A) and (B) respectively.
 
1. \((A) :Dil. aq~ \mathrm{NaOH}~ at ~20^{\circ} \mathrm{C}\\ (B) : \mathrm{HBr}, \mathrm{CH}_3 \mathrm{COOH} \)
2. \( (A) : Dil. aq~ \mathrm{NaOH}~ at~ 20^{\circ} \mathrm{C}\\ (B) : \mathrm{Br}_2, \mathrm{CHCl}_3 \)
3. \( (A) : Alc. \mathrm{NaOH}~ at~ 80^{\circ} \mathrm{C}\\ (B) : \mathrm{HBr}, \mathrm{CH}_3 \mathrm{COOH} \)
4. \((A) : Alc. \mathrm{NaOH}~ at~ 80^{\circ} \mathrm{C}\\ (B) : \mathrm{Br}_2, \mathrm{CHCl}_3\)
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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Level 2: 60%+
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Which of the following reactions gives a wrong product under the given reaction conditions?
1.
2.
3.
4.
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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Total number of structural isomers possible for a compound with molecular formula \(C_7H_{16}\) are:

1. 5 
2. 1 
3. 0 
4. 9
Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
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Consider the following sequence of reactions:
\(\mathrm{ But -2-yne } \xrightarrow{\mathrm{Na}-\text { Liq. } \mathrm{NH}_3} \mathrm{~A} \xrightarrow{\text { Cold, alkaline, dil. } \mathrm{KMnO}_4} \mathrm{~B}\)
The number of oxygen atoms present in one molecule of B is/are:
1. 2  2. 3
3. 4  4. 1
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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Find the reagents A and B required for the following conversion:

 

1.  A: O₃/Zn–H₂O; B: H₃O⁺
2.  A: O₃/Zn–H₂O; B: LiAlH₄
3.  A: O₃/Zn–H₂O; B: I₂/NaOH
4.  A: KMnO₄/H⁺, Δ; B: LiAlH₄
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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Consider the following reaction:

The product (P) is
1. Adipic acid
2. Oxalic acid
3. Succinic acid
4. Benzoic acid
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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How many \(\pi\) bonds are present in the product (B) of the reaction illustrated below?
1. 4  2. 3 
3. 2  4. 1
Subtopic:  Aromatic Hydrocarbons - Nomenclature, Isomerism & Huckel's Rule | Aromatic Hydrocarbons - Reactions & Mechanism |
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Arrange the following compounds in increasing order of electrophilic aromatic substitution:



1. (iv) < (i) < (ii) < (iii)
2. (iii) < (ii) < (i) < (iv)
3. (i) < (iv) < (iii) < (ii)
4. (ii) < (iii) < (i) < (iv)
 
Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
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The total number of secondary carbon atoms present in the given compound is:

1. 1
2. 2
3. 3
4. 4
Subtopic:  Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
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