JEE Mains · Chemistry · STD 11 - 8.3. Organic chemistry purification and characterization
The adsorbent used in adsorption chromatography is _______. \(A\). silica gel \(B\). alumina \(C\). quick lime \(D\). magnesia Choose the most appropriate answer from the options given below :
- A \(B\) only
- B \(C\) and \(D\) only
- C \(A\) and \(B\) only
- D \(A\) only
Answer & Solution
Correct Answer
(C) \(A\) and \(B\) only
Step-by-step Solution
Detailed explanation
The most common polar and acidic support used is adsorption chromatography is silica. The surface silanol groups on their supported to adsorb polar compound and work particularly well for basic substances. Alumina is the example of polar and basic adsorbent that is used in…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- Total number of unpaired electrons in the complex ion \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}\) and \(\left[\mathrm{NiCl}_4\right]^{2-}\) is _______.JEE Mains 2024 Medium
- Given below are two statements :
Consider the following reaction
JEE Mains 2025 Hard - The half-life of \({}^{65}Zn\) is 245 days. After x days, 75% of original activity remained. The value of x in days is _________ . (Nearest integer)
(Given \(: \log 3=0.4771\) and \(\log 2=0.3010\) )JEE Mains 2026 Easy - The number of paramagnetic species among the following is\(......\) \(B _{2}, Li _{2}, C _{2}, C _{2}^{-}, O _{2}^{2-}, O _{2}^{+}\)and \(He _{2}^{+}\)JEE Mains 2022 Easy
- The cell potential for \(Zn \left| Zn ^{2+}( aq ) \| Sn ^{ x +}\right| Sn\) is \(0.801\) \(V\) at \(298\,K\). The reaction quotient for the above reaction is \(10^{-2}\). The number of electrons involved in the given electrochemical cell reaction is. .... (Given \(E _{ Zn ^{2+} \mid Zn }^{0}=-0.763\,V , E _{ Sn ^{ x +} \mid Sn }^{0}=+0.008\,V\) and \(\left.\frac{2.303\,RT }{ F }=0.06\,V \right)\)JEE Mains 2022 Medium
- Consider that a \(d ^{6}\) metal ion \(\left( M ^{2+}\right)\) forms a complex with aqua ligands, and the spin only magnetic moment of the complex is \(4.90\) \(BM.\) The geometry and the crystal field stabilization energy of the complex is:JEE Mains 2020 Medium
More PYQs from JEE Mains
- The standard enthalpy of formation \((\Delta _f\,H^o_{298})\) for methane, \(CH_4\) is \(-74.9\,kJ\,mol^{-1}\) . In order to calculate the average energy given out in the formation of a \(C - H\) bond from this it is necessary to know which one of the following?JEE Mains 2014 Hard
- Given below are two statements:
Statement I: The structure of Maltose is given below:

Maltose is a non-reducing sugar.
Statement II: The structure of Lactose is given below:
Lactose is a reducing sugar.
In the light of the above statements, choose the correct answer from the options given belowJEE Mains 2026 Medium - The number of species from the following that have pyramidal geometry around the central atom is _______. \(\mathrm{S}_2 \mathrm{O}_3^{2-}, \mathrm{SO}_4^{2-}, \mathrm{SO}_3^{2-}, \mathrm{S}_2 \mathrm{O}_7^{2-}\)JEE Mains 2024 Medium
- \(20\) mL of a solution of acetic acid required \(28.4\) mL of \(0.1\) M NaOH for its neutralization. A solution (X) was prepared by mixing \(20\) mL of the above acetic acid and \(14.2\) mL of \(0.1\) M NaOH solution. What is the pH of the solution (X)? (\(pK_a\) value of acetic acid is \(4.75\)).JEE Mains 2026 Medium
- If \(S\) and \(S^{\prime}\) are the foci of the ellipse \(\frac{x^2}{18}+\frac{y^2}{9}=1\) and P be a point on the ellipse, then \(\min \left(S P . S^{\prime} \mathrm{P}\right)+\) \(\max \left(\mathrm{SP} . \mathrm{S}^{\prime} \mathrm{P}\right)\) is equal to :JEE Mains 2025 Medium
- Let \(\overrightarrow{ a }=\alpha \hat{ i }+2 \hat{ j }-\hat{ k }\) and \(\overrightarrow{ b }=-2 \hat{ i }+\alpha \hat{ j }+\hat{ k }\), where \(\alpha \in R\). If the area of the parallelogram whose adjacent sides are represented by the vectors \(\vec{a}\) and \(\vec{b}\) is \(\sqrt{15\left(\alpha^{2}+4\right)}\), then the value of \(2|\vec{a}|^{2}+(\vec{a} \cdot \vec{b})|\vec{b}|^{2}\) is equal toJEE Mains 2022 Hard