Assertion (A): The boiling point of ethanol is higher than that of methoxymethane. Reason (R): There is intramolecular hydrogen bonding in ethanol.
Assertion (A): The boiling points of alkyl halides decrease in the order: RI>RBr>RCl>RF. Reason (R): The boiling points of alkyl chlorides, bromides and iodides are considerably higher than that of the hydrocarbon of comparable molecular mass.
Assertion (A): [Cr(H_2O)_6]Cl_2 and [Fe(H_2O)_6]Cl_2 are examples of homoleptic complexes. Reason (R): All the ligands attached to the metal are the same.
Which of the following statements is not true about glucose?
An unripe mango placed in a concentrated salt solution to prepare pickle, shrivels because __________
The acid formed when propyl magnesium bromide is treated with CO_2 followed by acid hydrolysis is:
Which is the correct order of acid strength from the following?
Alkyl halides undergoing nucleophilic bimolecular substitution reaction involve:
Arrange the following compounds in increasing order of their boiling points: \includegraphics[]{6a.png}\includegraphics[]{6b.png}\includegraphics[]{6c.png}
The correct IUPAC name of \([ \text{Pt}(\text{NH}_3)_2\text{Cl}_2 ]^{2+} \) is:
Acidified KMnO_4 oxidizes sulphite to:
The magnetic moment is associated with its spin angular momentum and orbital angular momentum. Spin only magnetic moment value of Cr^{3+ ion (Atomic no. : Cr = 24) is:
Standard electrode potential for \( \text{Sn}^{4+}/\text{Sn}^{2+} \) couple is +0.15 V and that for the \( \text{Cr}^{3+}/\text{Cr} \) couple is -0.74 V. The two couples in their standard states are connected to make a cell. The cell potential will be:
To calculate the cell potential (\( E^\circ_{\text{cell}} \)), we use the standard electrode potentials of the given redox couples.
Given data:\( E^\circ_{\text{Sn}^{4+}/\text{Sn}^{2+}} = +0.15V \)\( E^\circ_{\text{Cr}^{3+}/\text{Cr}} = -0.74V \)
In case of association, abnormal molar mass of solute will:
Why is molecularity applicable only for elementary reactions whereas order is applicable for elementary as well as complex reactions?
A certain reaction is 50 complete in 20 minutes at 300 K and the same reaction is 50 complete in 5 minutes at 350 K. Calculate the activation energy if it is a first order reaction. Given: \[ R = 8.314 \, \text{J K}^{-1} \, \text{mol}^{-1}, \quad \log 4 = 0.602 \]
The elements of the 3d transition series are given as: Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn. Answer the following:
(a) Copper has an exceptionally positive \( E^\circ_{\text{M}^{2+}/\text{M}} \) value, why?
Which element is a strong reducing agent in +2 oxidation state and why?
Zn\(^{2+}\) salts are colourless. Why?
(A) Draw the structure of the major monohalo product for each of the following reactions: \vspace{5pt} (a) \includegraphics[]{26a.png}
Chlorobenzene to biphenyl
Propene to 1-Iodopropane