Question:
The compound formed in the positive test for nitrogen with the Lassaigne solution of an organic compound is
The compound formed in the positive test for nitrogen with the Lassaigne solution of an organic compound is
Updated On: Jul 29, 2022
- $Fe_4[Fe(CN)_6]_3$
- $Na_4[Fe(CN)_5NOS]$
- $Fe(CN)_3$
- $Na_3[Fe(CN)_6]$
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Answer (a) $Fe_4[Fe(CN)_6]_3$
Was this answer helpful?
0
0
Top Questions on Methods Of Purification Of Organic Compounds
- Methods used for purification of organic compounds are based on :
- JEE Main - 2024
- Chemistry
- Methods Of Purification Of Organic Compounds
- Geraniol, a volatile organic compound, is a component of rose oil. The density of the vapour is 0.46 gL–1 at 257°C and 100 mm Hg. The molar mass of geraniol is ____ g mol –1. (Nearest Integer) [Given: R = 0.082 L atm K–1 mol–1]
- JEE Main - 2022
- Chemistry
- Methods Of Purification Of Organic Compounds
- Given below are two statements:
Statement I: In ‘Lassaigne’s Test’, when both nitrogen and sulphur are present in an organic compound, sodium thiocyanate is formed.
Statement II: If both nitrogen and sulphur are present in an organic compound, then the excess of
sodium used in sodium fusion will decompose the sodium thiocyanate formed to give NaCN and Na2S.
In the light of the above statements, choose the most appropriate answer from the options given below:- JEE Main - 2022
- Chemistry
- Methods Of Purification Of Organic Compounds
- Vulcanization of rubber is carried out by heating a mixture of
- JEE Main - 2022
- Chemistry
- Methods Of Purification Of Organic Compounds
- Kjeldahl’s method was used for the estimation of nitrogen in an organic compound. The ammonia evolved from 0.55 g of the compound neutralised 12.5 mL of 1 M H2SO4 solution. The percentage of nitrogen in the compound is _____. (Nearest integer)
- JEE Main - 2022
- Chemistry
- Methods Of Purification Of Organic Compounds
View More Questions
Questions Asked in AIEEE exam
- This question has Statement 1 and Statement 2. Of the four choices given after the Statements, choose the one that best describes the two Statements. It is not possible to make a sphere of capacity $1$ farad using a conducting material. It is possible for earth as its radius is $6.4 \times 10^6\,m$.
- AIEEE - 2012
- electrostatic potential and capacitance
- A steel wire can sustain $100\, kg$ weight without breaking. If the wire is cut into two equal parts, each part can sustain a weight of
- AIEEE - 2012
- mechanical properties of solids
- The limiting line in Balmer series will have a frequency of (Rydberg constant, $R_{\infty}=3.29\times10^{15}$ cycles/s)
- AIEEE - 2012
- Electromagnetic Spectrum
- Which of the plots shown in the figure represents speed (v) of the electron in a hydrogen atom as a function of the principal quantum number (n)?
- The ratio of number of oxygen atoms (O) in 16.0 g ozone $(O_3), \,28.0\, g$ carbon monoxide $(CO)$ and $16.0$ oxygen $(O_2)$ is (Atomic mass: $C = 12,0 = 16$ and Avogadro?? constant $N_A = 6.0 x 10^{23}\, mol^{-1}$)
- AIEEE - 2012
- Mole concept and Molar Masses
View More Questions
Concepts Used:
Purification of Organic Compounds
We commonly use these methods for the purification of substances:
- Simple crystallization - The most common method that we use to purify organic solids.
- Fractional crystallization - It is the process of separation of different components of a mixture by repeated crystallisations.
- Sublimation - Certain organic solids on heating directly change from solid to vapor state without passing through a liquid state. These substances are sublimable. This process is sublimation.
- Simple distillation - It is the joint process of vaporization and condensation.
- Fractional distillation - It is the process to separate a mixture of two or more miscible liquids which have boiling points close to each other
- Distillation under reduced pressure
- Steam distillation
- Azeotropic distillation
- Chromatography