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

At $T(\mathrm{~K})$ in a saturated solution of $\mathrm{MgCO}_3$ and $\mathrm{Ag}_2 \mathrm{CO}_3$, if the concentration of $\mathrm{Mg}^{2+}$ ion is $3.2 \times 10^{-5} \mathrm{M}$, then the concentration of $\mathrm{Ag}^{+}$ion in the solution will be [Given, $K_{\mathrm{sp}}\left(\mathrm{MgCO}_3\right)=1.6 \times 10^{-6}$ and $K_{\mathrm{sp}}\left(\mathrm{Ag}_2 \mathrm{CO}_3\right)=8.0 \times 10^{-12}$ at $T(\mathrm{~K})$ ]

A

$\sqrt{1.3} \times 10^{-7} \mathrm{M}$

B

$\sqrt{1.5} \times 10^{-6} \mathrm{M}$

C

$\sqrt{1.6} \times 10^{-6} \mathrm{M}$

D

$\sqrt{1.6} \times 10^{-5} \mathrm{M}$

2
TG EAPCET 2025 (Online) 3rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Temperature of maximum density of $\mathrm{H}_2 \mathrm{O}$ is $y \mathrm{~K}$ and $\mathrm{D}_2 \mathrm{O}$ is $x \mathrm{~K} .(x-y)($ in K$)$ is nearly

A

7.0

B

3.5

C

4.0

D

8.5

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

How many of the following metals give oxides and nitrides when burnt in air?

Be, Na, Mg, Ba, Sr, Li, K

A

2

B

3

C

4

D

5

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

Identify the incorrect order against the property given in brackets

A

$\mathrm{BeCO}_3<\mathrm{MgCO}_3<\mathrm{CaCO}_3<\mathrm{SrCO}_3$ (Thermal stability)

B

$\mathrm{BeSO}_4>\mathrm{MgSO}_4>\mathrm{CaSO}_4>\mathrm{SrSO}_4$ (Solubility in water)

C

$\mathrm{Li}_2 \mathrm{CO}_3>\mathrm{Na}_2 \mathrm{CO}_3>\mathrm{K}_2 \mathrm{CO}_3>\mathrm{Rb}_2 \mathrm{CO}_3$ (Thermal stability)

D

$\mathrm{BeCO}_3>\mathrm{MgCO}_3>\mathrm{CaCO}_3>\mathrm{SrCO}_3$ (Solubility in water)

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