Given below are some nitrogen containing compounds:
Each of them is treated with HCl separately. 1.0 g of the most basic compound will consume ....... mg of HCl.
(Given Molar mass in g mol\(^{-1}\): C: 12, H: 1, O: 16, Cl: 35.5.)
Given below are some nitrogen containing compounds:
Each of them is treated with HCl separately. 1.0 g of the most basic compound will consume ....... mg of HCl.
(Given Molar mass in g mol\(^{-1}\): C: 12, H: 1, O: 16, Cl: 35.5.)
Show Hint
Solution and Explanation
In order to solve this, we need to identify the most basic compound from the given list. The basicity is typically determined by the ability of the compound to donate an electron pair to form a salt with HCl. In this case, primary amines are generally the most basic.
Aniline (\( {C}_6{H}_5{NH}_2 \)) is a primary amine and will react with HCl to form an ammonium salt.
Methyleneamine (\( {CH}_2{NH}_2 \)) is another primary amine and more basic than aniline.
Acetanilide (\( {N-COCH}_3 {NH}_2 \)) is an amide derivative of aniline and will be less basic due to the electron-withdrawing nature of the acetyl group.
Nitroaniline (\( {NO}_2 {C}_6{H}_4 {NH}_2 \)) is less basic due to the strong electron-withdrawing group (-NO2) attached to the aromatic ring. Thus, methyleneamine (\( {CH}_2{NH}_2 \)) is the most basic compound. Now we calculate how much HCl will be consumed by 1.0 g of methyleneamine.
Molar mass of methyleneamine: \[ {Molar mass of methyleneamine} = 12 + 2 \times 1 + 14 = 29 \, {g/mol} \] The number of moles of methyleneamine in 1.0 g: \[ \frac{1.0 \, {g}}{29 \, {g/mol}} = 0.03448 \, {mol} \] Since methyleneamine is a primary amine, it will react with 1 mole of HCl per mole of amine group: \[ {HCl required} = 0.03448 \, {mol} \times 36.5 \, {g/mol} = 1.26 \, {g of HCl} \] Thus, 1.0 g of the most basic compound will consume 1.26 g of HCl. Since the question asks for the answer in mg, we convert: \[ 1.26 \, {g} = 1260 \, {mg} \]
Correct Answer: The most basic compound, methyleneamine, will consume 1260 mg of HCl.
Top JEE Main Chemistry Questions
What will be the equilibrium constant of the given reaction carried out in a \(5 \,L\) vessel and having equilibrium amounts of \(A_2\) and \(A\) as \(0.5\) mole and \(2 \times 10^{-6}\) mole respectively?
The reaction : \(A_2 \rightleftharpoons 2A\)- At equilibrium the concentrations of and in a sealed vessel at . What will be for the reaction
- Find out the major products from the following reactions
Cobalt chloride when dissolved in water forms pink colored complex $X$ which has octahedral geometry. This solution on treating with cone $HCl$ forms deep blue complex, $\underline{Y}$ which has a $\underline{Z}$ geometry $X, Y$ and $Z$, respectively, are
- The correct order of atomic radii is:
Top JEE Main Thermodynamics Questions
- Match List – I with List –II.
Choose the correct answer from options given below: Which of the following is not correct?
- When \( \Delta H_{\text{vap}} = 30 \, \text{kJ/mol} \) and \( \Delta S_{\text{vap}} = 75 \, \text{J mol}^{-1} \text{K}^{-1} \), then the temperature of vapour, at one atmosphere, is \( \dots \dots \dots \, \text{K} \).
- If 5 moles of an ideal gas expands from \( 10 \, L \) to a volume of \( 100 \, L \) at \( 300 \, K \) under isothermal and reversible conditions, then work, \( w \), is \( -x \, J \). The value of \( x \) is ______.
(Given \( R = 8.314 \, \text{J K}^{-1} \text{mol}^{-1} \)) - The enthalpy of formation of ethane (\( \text{C}_2\text{H}_6 \)) from ethylene by addition of hydrogen,
where the bond energies of \( \text{C} - \text{H} \), \( \text{C} - \text{C} \), \( \text{H} - \text{H} \) are \( 414 \, \text{kJ} \), \( 347 \, \text{kJ} \), \( 615 \, \text{kJ} \), and \( 435 \, \text{kJ} \) respectively, is _________ \( \text{kJ} \).
Top JEE Main Questions
- Two masses $m$ and $\frac{m}{2}$ are connected at the two ends of a massless rigid rod of length $l$. The rod is suspended by a thin wire of torsional constant $k$ at the centre of mass of the rod-mass system(see figure). Because of torsional constant $k$, the restoring torque is $\tau =k\theta$ for angular displacement $\theta$. If the rod is rota ted by $\theta_0$ and released, the tension in it when it passes through its mean position will be:
What will be the equilibrium constant of the given reaction carried out in a \(5 \,L\) vessel and having equilibrium amounts of \(A_2\) and \(A\) as \(0.5\) mole and \(2 \times 10^{-6}\) mole respectively?
The reaction : \(A_2 \rightleftharpoons 2A\)- The value of is
- The number of terms of an is even. The sum of the odd terms is and of the even terms is . The last term exceeds the first by . Then the number of terms in the series is ______.
A black body is at a temperature of 2880 K. The energy of radiation emitted by this body with wavelength between 499 nm and 500 nm is U1, between 999 nm and 1000 nm is U2 and between 1499 nm and 1500 nm is U3. The Wien's constant, b = 2.88×106 nm-K. Then,