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The reaction among the following that proceeds through an electrophilic substitution reaction is:
Equimolar solutions of the following substances were prepared separately. Which one of these will record the highest pH value?
The conjugate bases of Bronsted acids $H_2O$ and $HF$ are respectively:
Which of the following methods is incorrect for the synthesis of alkenes?
The order of decreasing reactivity towards an electrophilic reagent for the following compounds is: (i) Benzene (ii) Toluene (iii) Chlorobenzene (iv) Phenol
Which composition will make the basic buffer?
The correct reaction among the following is:
X and Y in the above-mentioned reaction are respectively:
Match the bond line structures of hydrocarbons given in List-I with the corresponding boiling points given in List-II. List-II (Boiling point in K): (i) 300.9 (ii) 282.5 (iii) 309.1 (iv) 341.9 Choose the correct answer from the options given below:
The major product formed in the dehydrohalogenation reaction of 2-bromopentane is pent-2-ene. This product formation is based on:
The dihedral angle of the least stable conformer of ethane is:
For the cell reaction $2Fe^{3+} (aq) + 2I^- (aq) \rightarrow 2Fe^{2+} (aq) + I_2 (aq)$, $E^{\ominus}_{cell} = 0.24 \text{ V}$ at 298 K. The standard Gibbs energy ($\Delta_r G^{\ominus}$) of the cell reaction is : [Given that Faraday constant $F = 96500 \text{ C mol}^{-1}$]
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:
Phenanthrene is an aromatic compound and follows Hückel's $(4n+2)\pi$ electron rule. The value of $n$ is:
A solution containing $10 \text{ g/dm}^3$ of urea (molecular mass $= 60 \text{ g mol}^{-1}$) is isotonic with a $5 \%$ solution of a non-volatile solute. The molecular mass of this non-volatile solute is:
The manganate and permanganate ions are tetrahedral, due to:
The correct statement regarding the comparison of staggered and eclipsed conformations of ethane is:
The correct structure of tribromooctaoxide is
Which colligative property provides the most accurate method for determining the molecular weight of proteins and polymers?
When neutral or faintly alkaline $KMnO_4$ is treated with potassium iodide, iodide ion is converted into 'X'. 'X' is: