MCQ
Maximum ferromagnetism is found in?
- ✓$Fe$
- B$Ni$
- C$Co$
- DNone
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For a certain quantity of reactants, if the volume of the reaction vessel is reduced by a factor of $3,$ the rate of the reaction increases by a factor of $.....$. (Round off to the Nearest Integer).
Major product $(Q)$ of following sequence is
Find out the products of reaction
$\begin{array}{*{20}{c}}
{C{H_3} - CHC{H_2}CHO} \\
{\,|\,\,\,\,\,\,\,\,\,\,\,\,} \\
{OH\,\,\,\,\,\,}
\end{array}$
Statement $(I)$ : The $\mathrm{NH}_2$ group in Aniline is ortho and para directing and a powerful activating group.
Statement $(II)$ : Aniline does not undergo FriedelCraft's reaction (alkylation and acylation).
In the light of the above statements, choose the most appropriate answer from the options given below :
Assertion $A :$ Dipole-dipole interactions are the only non-covalent interactions, resulting in hydrogen bond formation.
Reason $R$ : Fluorine is the most electronegative element and hydrogen bonds in $HF$ are symmetrical.
In the light of the above statements, choose the most appropriate answer from the options given below.