MCQ
Correct $IP$ order is
- A$Zn > Hg > Tl$
- B$Mn > Zn > Ga$
- ✓$Hg > Cd > In$
- D$La > Pt < Hg$
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${C_6}{H_6}\left( l \right) + \frac{{15}}{2}{O_2}\left( g \right) \longrightarrow 6C{O_2}\left( g \right) + 3{H_2}O\left( l \right)\,;\,\Delta H = - 3271\,kJ$
What is $\Delta U$ for the combustion of $1.5\, mole$ of benzene at $27\,^oC$. .....$ kJ$
$A$. has been used in spaceship
$B$. has as efficiency of $40 \%$ to produce electricity
$C$. uses aluminium as catalysts
$D$. is eco-friendly
$E$. is actually a type of Galvanic cell only
Between the two tautomers which is more stable ?
$\begin{array}{*{20}{c}}
{C{H_3} - C{H_2} - C - COOH} \\
{\,\,\,\,\,\,\,\,||} \\
{\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}}
\end{array}$
is :