**Simulator**

**Previous Years JEE Advance Questions**

Q.

**The synthesis of 3-octyne is achieved by adding a bromoalkane into a mixture of sodium amide and an alkyne. The bromoalkane and alkyne respectively are**(A) $\mathrm{BrCH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}$ and $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{C} \equiv \mathrm{CH}$ (B) $\mathrm{BrCH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}$ and $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{C} \equiv \mathrm{CH}$ (C) $\mathrm{BrCH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}$ and $\mathrm{CH}_{3} \mathrm{C} \equiv \mathrm{CH}$ (D) $\mathrm{BrCH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}$ and $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{C} \equiv \mathrm{CH}$**[IIT-2010]**
Q.

**Isomers of hexane, based on their branching, can be divided into three distinct classes as shown in the figure.**The correct order of their boiling point is (A) I > II > III (B) III > II > I (C) II > III > I (D) III > I > II**[IIT-2014]****Paragraph For Question 3 and 4**Schemes 1 and 2 describe sequential transformation of alkynes M and N. Consider only the major products formed in each step for both the schemes.

Q.

**The product X is –****[IIT-2014]**
Q.

**The correct statement with respect to prodcut Y is –**(A) It gives a positive Tollens test and is a functional isomer of X (B) It gives a positive Tollens test and is a geometrical isomer of X (C) It gives a positive Iodoform test and is a functional isomer of X (D) It gives a positive Iodoform test and is a geometrical isomer of X**[IIT-2014]**
Q.

**Compound(s) that on hydrogenation produce(s) optically inactive compound(s) is (are) –****[IIT-2015]****Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...**

**Sol.**(B,D)

**Paragraph For Questions 6 and 7**In the following reaction

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**Compound X is :****[IIT-2015]**
Q.

**The major compound Y is :****[IIT-2015]**
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