1
TG EAPCET 2024 (Online) 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
If first ionisation enthalpy $\left(\Delta_{i} H\right)$ values of $\mathrm{Na}, \mathrm{Mg}$ and Si are respectively 496,737 and $786 \mathrm{~kJ} \mathrm{~mol}^{-1}$, the first ionisation enthalpy value of $\mathrm{Al}\left(\mathrm{in} \mathrm{kJ} \mathrm{mol}^{-1}\right.$ ) will be
A
575
B
760
C
400
D
790
2
TG EAPCET 2024 (Online) 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
Among the oxides $\mathrm{SiO}_{2}, \mathrm{SO}_{2}, \mathrm{Al}_{2} \mathrm{O}_{3}$ and $\mathrm{P}_{2} \mathrm{O}_{3}$, the correct order of acidic strength is
A
$\mathrm{SiO}_{2} < \mathrm{SO}_{2} < \mathrm{Al}_{2} \mathrm{O}_{3} < \mathrm{P}_{2} \mathrm{O}_{3}$
B
$\mathrm{SO}_{2} < \mathrm{P}_{2} \mathrm{O}_{3} < \mathrm{Al}_{2} \mathrm{O}_{3} < \mathrm{SiO}_{2}$
C
$\mathrm{Al}_{2} \mathrm{O}_{3} < \mathrm{SiO}_{2} < \mathrm{P}_{2} \mathrm{O}_{3} < \mathrm{SO}_{2}$
D
$\mathrm{Al}_{2} \mathrm{O}_{3} < \mathrm{P}_{2} \mathrm{O}_{3} < \mathrm{SiO}_{2} < \mathrm{SO}_{2}$
3
TG EAPCET 2024 (Online) 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
According to molecular orbital theory, which of the following statements is not correct?
A
$\mathrm{C}_{2}$ molecule is diamagnetic in nature
B
Bond order of $\mathrm{C}_{2}$ molecule is 2
C
$\mathrm{C}_{2}^{-}$ion is paramagnetic in nature
D
$\mathrm{C}_{2}$ consists of $1 \sigma$ and $1 \pi$ bonds
4
TG EAPCET 2024 (Online) 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The melting point of $o$-hydroxybenzaldehyde $(A)$ is lower than that of $p$-hydroxybenzaldehyde $(B)$. This is because
A
(A) has intermolecular H -bonding and (B) has intramolecols $H$-bonding.
B
Both $(A)$ and $(B)$ have intermolecular H -bonding.
C
Both $(A)$ and $(B)$ have intramolecular H -bonding.
D
(A) has intramolecular H -bonding and $(B)$ has intermoleovs $H$-bonding.
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