TG EAPCET 2024 (Online) 9th May Morning Shift | s-Block Elements Question 17 | Chemistry

Reason ( R ) In aqueous medium the basic strength of $\mathrm{MgO}, \mathrm{CaO}, \mathrm{SrO}$ and BaO increases with increase in the atomic number of metal.

The correct option among the following is

Both $(A)$ and $(R)$ are correct and $(R)$ is the correct explanation of (A).

Both (A) and (R) are correct but ( R ) is not the correct explanation of (A).

(A) is correct but ( $R$ ) is not correct.

(A) is not correct but (R) is correct.

TS EAMCET 2023 (Online) 14th May Evening Shift

MCQ (Single Correct Answer)

-0

Identify the incorrect reaction from the following.

$2 \mathrm{NaNO}_3 \longrightarrow 2 \mathrm{NaNO}_2+\mathrm{O}_2$

$2 \mathrm{LiNO}_3 \longrightarrow 2 \mathrm{LiNO}_2+\mathrm{O}_2$

$2 \mathrm{~Pb}\left(\mathrm{NO}_3\right)_2 \longrightarrow 2 \mathrm{PbO}+4 \mathrm{NO}_2+\mathrm{O}_2$

$\mathrm{Mg}_2 \mathrm{C}_3+\mathrm{H}_2 \mathrm{O} \longrightarrow \mathrm{CH}_3 \mathrm{C} \equiv \mathrm{CH}+\mathrm{Mg}(\mathrm{OH})_2$

TS EAMCET 2023 (Online) 14th May Morning Shift

MCQ (Single Correct Answer)

-0

The alkali metal with lowest $E^{\circ}{ }_{M^{+} / M}(\mathrm{~V})$ is $X$ and the alkali metal with highest $E^{\circ}{ }_{M^{+} / M}(\mathrm{~V})$ is $Y$. Then $X$ and $Y$ are respectively

$\mathrm{Li}, \mathrm{Na}$

$\mathrm{Li}, \mathrm{Cs}$

$\mathrm{Na}, \mathrm{Li}$

$\mathrm{Cs}, \mathrm{Li}$

TS EAMCET 2023 (Online) 14th May Morning Shift

MCQ (Single Correct Answer)

-0

Assertion (A) Be and Mg do not impart any colour to the flame.

Reason (R) The electrons in them are strongly bound to get excited by flame.

(A) and (R) are true (R) is the correct explanation of (A).

(A) and (R) are true, but (R) is not the correct explanation of (A).

(A) is correct but (R) is incorrect.

(A) is incorrect but (R) is correct.

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