1
TG EAPCET 2025 (Online) 4th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The $C_p$ of an ideal gas is $10314 \mathrm{Jmol}^{-1} \mathrm{~K}^{-1}$. One mole of this gas is expanded against a constant pressure of $p \mathrm{~atm}$. The change in temperature during expansion is 1.0 K . The value of $q$ (in J ) and $\Delta H$ (in $\mathrm{Jmol}^{-1}$ ) are respectively.

A

$10.314,10.314$

B

$2.000,10.314$

C

$10.314,2.000$

D

$2.000,2.000$

2
TG EAPCET 2025 (Online) 4th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

At $T(\mathrm{~K}), K_p$ value for the reaction,

$$ 2 \mathrm{AO}_2(\mathrm{~g})+\mathrm{O}_2(\mathrm{~g}) \rightleftharpoons 2 \mathrm{AO}_3(\mathrm{~g}) \text { is } 4 \times 10^{10}, $$

What is the $K_p^{\prime}$ value for

$$ 2 \mathrm{AO}_2(\mathrm{~g})+\frac{3}{2} \mathrm{O}_2 \rightleftharpoons 3 \mathrm{AO}_3(\mathrm{~g}) \text { at } T(\mathrm{~K}) $$

A

$16 \times 10^{20}$

B

$8 \times 10^{20}$

C

$16 \times 10^{15}$

D

$8 \times 10^{15}$

3
TG EAPCET 2025 (Online) 4th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A sample of water contains $\mathrm{Mg}\left(\mathrm{HCO}_3\right)_2$ and $\mathrm{Ca}\left(\mathrm{HCO}_3\right)_2$ On boiling this water, these hydrogen carbonates are removed as precipitates. The precipitates are

A

$\mathrm{MgCO}_3, \mathrm{CaCO}_3$

B

$\mathrm{Mg}(\mathrm{OH})_2, \mathrm{Ca}(\mathrm{OH})_2$

C

$\mathrm{Mg}(\mathrm{OH})_2, \mathrm{CaCO}_3$

D

$\mathrm{MgCO}_3, \mathrm{Ca}(\mathrm{OH})_2$

4
TG EAPCET 2025 (Online) 4th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following statements is not correct?

A

Carbonates of alkaline earth metals are insoluble in water.

B

Beryllium halides are covalent in nature.

C

The super oxides of alkali metals are colourless.

D

Alkali metal halides have high negative enthalpies of formation.

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