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In $S_N2$ substitution reaction of the type $\text{R-Br} + \text{Cl}^- \xrightarrow{\text{DMF}} \text{R-Cl} + \text{Br}^-$, which one of the following has the highest relative rate?
A solid cylinder of mass 2 kg and radius 4 cm rotating about its axis at the rate of 3 rpm. The torque required to stop after $2\pi$ revolutions is
Which of the following biphenyls is optically active?
The major product formed in the dehydrohalogenation reaction of 2-bromopentane is pent-2-ene. This product formation is based on:
Which of the following acts as a circuit protecting device?
Benzene reacts with $CH_3Cl$ in the presence of anhydrous $AlCl_3$ to form:
The correct order of increasing C-X bond reactivity toward nucleophiles among the following is: I. [Missing] II. [Missing] III. $(\text{CH}_3)_3\text{C-X}$ IV. $(\text{CH}_3)_2\text{CH-X}$
The correct order for the rate of $\alpha, \beta$-dehydrohalogenation for the following compounds is:
Which of the following methods is incorrect for the synthesis of alkenes?
The products A and B obtained in the following reactions, respectively, are: $3\text{ROH} + \text{PCl}_3 \rightarrow 3\text{RCl} + \text{A}$ $\text{ROH} + \text{PCl}_5 \rightarrow \text{RCl} + \text{HCl} + \text{B}$
A reaction among the following can generate isonitriles as a major product. (A) $\text{R-X} + \text{HCN} \rightarrow$ (B) $\text{R-X} + \text{AgCN} \rightarrow$ (C) $\text{R-X} + \text{KCN} \rightarrow$ (D) $\text{R-X} + \text{NaCN} \xrightarrow{\text{C}_2\text{H}_5\text{OH}/\text{H}_2\text{O}}$ Choose the most appropriate answer from the options given below:
In the given reaction, the product P is:
P, Q and R in the above-mentioned sequence of reactions are respectively:
The correct statement regarding the comparison of staggered and eclipsed conformations of ethane is:
An alkene "A" on reaction with $O_3$ and $Zn-H_2O$ gives propanone and ethanal in equimolar ratio. The addition of HCl to alkene "A" gives "B" as the major product. The structure of product "B" is:
X and Y in the above-mentioned reaction are respectively:
The product(s) that are formed when the given compound is treated with $Br_2$ in the presence of $FeBr_3$ are:
The shorter and longer arms of a submetacentric chromosome are referred to as
The incorrect IUPAC name among the following is:
The stage during which separation of the paired homologous chromosomes begins is: