enEnglishguગુજરાતી
JEE Mains · Chemistry · STD 11 - 8.3. Organic chemistry purification and characterization
Which of the following compounds is not expected to show Lassaignes' test for nitrogen ?
- A Propanenitrile
- B Hydroxylamine hydrochloride
- C Nitromethane
- D Ethanamine
Answer & Solution
Correct Answer
(B) Hydroxylamine hydrochloride
Step-by-step Solution
Detailed explanation
Lassaigne's test is used for the detection of nitrogen and given by all nitrogenous compound except diazo \(\rlap{-} (\,\,N = N\rlap{-} )\) compounds. This test is shown only by the compounds containing \(C\) and \(N\) both hence hydroxyl amine hydrochloride \((H_2NOH .HCl)\)…
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
- Given below are two statements : Statement \(I :\) The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution. Statement \(II :\) Electron withdrawing groups in the carboxylic acid will increase the rate of esterification reaction. Choose the most appropriate optionJEE Mains 2022 Medium
- Total number of isomers (including stereoisomers) obtain on monochlorination of methylcyclohexane is \(........\)JEE Mains 2022 Medium
- For the equilibrium \(A\left( g \right) \rightleftharpoons B\left( g \right)\), \(\Delta H\) is \(-40\, k\,J/mol\). If the ratio of the activation energies of the forward \((E_f)\) and reverse \((E_b)\) reactions is \(\frac{2}{3}\) thenJEE Mains 2015 Hard
- The spin only magnetic moments (in \(BM\)) for free \(\mathrm{Ti}^{3+}, \mathrm{V}^{2+}\) and \(\mathrm{Sc}^{3+}\) ions respectively are (At.No. \(Sc: 21; Ti : 22; V : 23)\)JEE Mains 2021 Hard
- Choose the correct statements.
(A) Weight of a substance is the amount of matter present in it.
(B) Mass is the force exerted by gravity on an object.
(C) Volume is the amount of space occupied by a substance.
(D) Temperatures below \(0^{\circ} \mathrm{C}\) are possible in Celsius scale, but in Kelvin scale negative temperature is not possible.
(E) Precision refers to the closeness of various measurements for the same quantity.
Choose the correct answer from the options given below :JEE Mains 2025 Medium - Electron gain enthalpy with negative sign of fluorine is less than that of chlorine due toJEE Mains 2013 Medium
More PYQs from JEE Mains
-

0.1 mole of compound ' S ' will weigh _______ g. (Given molar mass in \(\mathrm{g} \mathrm{mol}^{-1} \mathrm{C}: 12, \mathrm{H}: 1, \mathrm{O}: 16\))JEE Mains 2025 Hard - In an electrochemical reaction of lead, at standard temperature, if \(E _{\left( Pb ^{2+} / Pb \right)}^0= m\) Volt and \(E _{\left( Pb ^{4+} / Pb \right)}^0= n\) Volt, then the value of \(E _{\left( Pb ^{2+} / Pb ^{4+}\right)}^0\) is given by \(m-x n\). The value of \(x\) is \(...........\). (Nearest integer)JEE Mains 2023 Medium
- Which one of the following is likely to give a precipitate with \(AgNO_3\) solution?JEE Mains 2019 Hard
- A sample contains mixture of helium and oxygen gas. The ratio of root mean square speed of helium and oxygen in the sample is _______.JEE Mains 2024 Hard
- 2 moles each of ethylene glycol and glucose are dissolved in 500 g of water. The boiling point of the resulting solution is _______.
(Given : Ebullioscopic constant of water \(\left.=0.52 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right)\)JEE Mains 2025 Medium - If the system of linear equations \(2 x-3 y=\gamma+5\) ; \(\alpha x+5 y=\beta+1\), where \(\alpha, \beta, \gamma \in R\) has infinitely many solutions, then the value of \(|9 \alpha+3 \beta+5 \gamma|\) is equal toJEE Mains 2022 Medium