Question:
Which technique among the following, is most appropriate in separation of a mixture of $100\, mg$ of $p$-nitrophenol and picric acid ?
Which technique among the following, is most appropriate in separation of a mixture of $100\, mg$ of $p$-nitrophenol and picric acid ?
Updated On: Dec 18, 2023
- Steam distillation
- 2-5 ft long column of silica gel
- Sublimation
- Preparative TLC (Thin Layer Chromatography)
Hide Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
The correct option is (D): Preparative TLC (Thin Layer Chromatography).
Was this answer helpful?
0
0
Top Questions on Organic Chemistry
- In phosphorus estimation, 0.5 g of an organic compound gives 0.75 g of \( \mathrm{Mg_2P_2O_7} \). The percentage of phosphorus (P) in the compound is (nearest integer):
- JEE Main - 2026
- Chemistry
- Organic Chemistry
- 1 g of an organic compound produces 1.49 g of \( \mathrm{Mg_2P_2O_7} \). Determine the percentage of phosphorus (P).
- JEE Main - 2026
- Chemistry
- Organic Chemistry
- Match the two columns:
- JEE Main - 2026
- Chemistry
- Organic Chemistry
- Order of reactivity of nucleophiles given below, \( \text{OH}^- \), \( \text{CH}_3\text{COO}^- \), \( \text{PhO}^- \), \( \text{ClO}_4^- \)
- JEE Main - 2026
- Chemistry
- Organic Chemistry
- Consider the following reaction: \[ \mathrm{Ph{-}CH_2NH_2 \xrightarrow[\text{Py}]{PhCOCl} X \xrightarrow[]{LiAlH_4} Y} \] The correct structure of \(Y\) is:
- JEE Main - 2026
- Chemistry
- Organic Chemistry
View More Questions
Questions Asked in JEE Main exam
Consider an A.P. $a_1,a_2,\ldots,a_n$; $a_1>0$. If $a_2-a_1=-\dfrac{3}{4}$, $a_n=\dfrac{1}{4}a_1$, and \[ \sum_{i=1}^{n} a_i=\frac{525}{2}, \] then $\sum_{i=1}^{17} a_i$ is equal to
- JEE Main - 2026
- Arithmetic Progression
- A thin convex lens of focal length \( 5 \) cm and a thin concave lens of focal length \( 4 \) cm are combined together (without any gap), and this combination has magnification \( m_1 \) when an object is placed \( 10 \) cm before the convex lens.
Keeping the positions of the convex lens and the object undisturbed, a gap of \( 1 \) cm is introduced between the lenses by moving the concave lens away. This leads to a change in magnification of the total lens system to \( m_2 \).
The value of \( \dfrac{m_1}{m_2} \) is
- Two blocks with masses 100 g and 200 g are attached to the ends of springs A and B as shown in figure. The energy stored in A is E. The energy stored in B, when spring constants \(k_A, k_B\) of A and B, respectively satisfy the relation \(4k_A = 3k_B\), is :
- JEE Main - 2026
- Alternating current
- Correct statements regarding Arrhenius equation among the following are:
Factor \(e^{-E_a/RT}\) corresponds to fraction of molecules having kinetic energy less than \(E_a\).
At a given temperature, lower the \(E_a\), faster is the reaction.
Increase in temperature by about \(10^\circ\text{C}\) doubles the rate of reaction.
Plot of \(\log k\) vs \(\dfrac{1}{T}\) gives a straight line with slope \(= -\dfrac{E_a}{R}\).
Choose the correct answer from the options given below:- JEE Main - 2026
- Chemical Kinetics
- If the image of the point \( P(1, 2, a) \) in the line \[ \frac{x - 6}{3} = \frac{y - 7}{2} = \frac{7 - z}{2} \] is \( Q(5, b, c) \), then \( a^2 + b^2 + c^2 \) is equal to
- JEE Main - 2026
- Distance of a Point From a Line
View More Questions
Concepts Used:
Organic Chemistry - Some Basic Principles and Techniques
Organic Chemistry is a subset of chemistry dealing with compounds of carbon. Therefore, we can say that Organic chemistry is the chemistry of carbon compounds and is 200-225 years old. Carbon forms bond with itself to form long chains of hydrocarbons, e.g.CH4, methane and CH3-CH3 ethane. Carbon has the ability to form carbon-carbon bonds quite elaborately. Polymers like polyethylene is a linear chain where hundreds of CH2 are linked together.
Read Also: Organic Compounds
Importance of Organic Chemistry:
Organic chemistry is applicable in a variety of areas including-
- Medicines: Example- Aspirin which is a headache medicine and Ibuprofen is a painkiller, both are organic compounds. Other examples include paracetamol.
- Food: Example- Starch which is a carbohydrate is an organic compound and a constituent of rice and other grains. It is the source of energy.
- Clothing: Example- Nylon, Polyester and Cotton are forms of organic compounds.
- Fuels: Examples- Gasoline, Petrol and Diesel are organic compounds used in the automobile industry at large.