MCQ
Given below are two statements :

Statement $(I)$ : Kjeldahl method is applicable to estimate nitrogen in pyridine.

Statement $(II)$ : The nitrogen present in pyridine can easily be converted into ammonium sulphate in Kjeldahl method.

In the light of the above statements, choose the correct answer from the options given below.

  • Both Statement $I$ and Statement $II$ is false
  • B
    Statement $I$ is false but Statement $II$ is true
  • C
    Both Statement $I$ and Statement $II$ is true
  • D
    Statement $I$ is true but Statement $II$ is false

Answer

Correct option: A.
Both Statement $I$ and Statement $II$ is false
a
Nitrogen present in pyridine can not be estimated by Kjeldahl method as the nitrogen present in pyridine can not be easily converted into ammonium sulphate.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

All natural processes are :
When the hydrogen ion concentration $\left[ H ^{+}\right]$changes by a factor of $1000$ , the value of $pH$ of the solution $.........$.
With respect to the compounds $I-V$, choose the correct statement($s$).

$(A)$ The acidity of compound $I$ is due to delocalization in the conjugate base.

$(B)$ The conjugate base of compound IV is aromatic.

$(C)$ Compound II becomes more acidic, when it has a $- NO _2$ substituent.

$(D)$ The acidity of compounds follows the order $I > IV > V > II > III$.

The certain volume of a gas exerts on its walls some pressure at a particular temperature. It has been found that by reducing the volume of the gas to half of its original value the pressure becomes twice that of the initial value at a constant temperature. This happens because :
Equilibrium constant $(K_c)$ of $2HI_{(g)}  \rightleftharpoons  H_{2(g)} + I_{2(g)}$ is $5\times10^3$. What is the equilibrium concentration of $HI$, if equilibrium concentrations of $H_{2(g)}$ and $I_{2(g)}$ respectively are $2.2\times10^{-2}\, M$ and $2.2\times10^{-4}\, M$ ?
Match List $I$ with List $II$.

List $I$ Isomeric pairs List $II$ Type of isomers
$A$ Propanamine and $N-$Methylethanamine $I$ Metamers
$B$ Hexan$-2-$one and Hexan$-3-$one $II$ Positional isomers
$C$ Ethanamide and Hydroxyethanimine $III$ Functional isomers
$D$ $o-$nitrophenol and $p-$nitrophenol $IV$ Tautomers

Choose the correct answer from the options given below :-

$1g$ of $\ce{M_2CO_3}$ on treatment with excess $\ce{HCl}$ produces $0.01186$ moles of $\ce{CO_2}$ The molar mass of $\ce{M_2CO_3}$ in $\ce{g mor}^{-1}$ is :
The compound formed by passing ethylene gas into cold alkaline solution of $KMn{O_4}$ is
The best conductor of electricity is a $ 1.0 \,M$  solution of
Carbon and hydrogen are detected by heating the organic compound with $..........$