JEE Main 2023 (Online) 13th April Morning Shift | s-Block Elements Question 4 | Chemistry

$$\mathrm{Be}(\mathrm{OH})_{2}$$ reacts with $$\mathrm{Sr}(\mathrm{OH})_{2}$$ to yield an ionic salt.

Choose the incorrect option related to this reaction from the following :

Be is tetrahedrally coordinated in the ionic salt.

The element $$\mathrm{Be}$$ is present in the cationic part of the ionic salt.

Both $$\mathrm{Sr}$$ and $$\mathrm{Be}$$ elements are present in the ionic salt.

The reaction is an example of acid - base neutralization reaction.

JEE Main 2023 (Online) 12th April Morning Shift

MCQ (Single Correct Answer)

-1

Out of Syllabus

The density of alkali metals is in the order :

$$\mathrm{Na}<\mathrm{K}<\mathrm{Cs}<\mathrm{Rb}$$

$$\mathrm{K}<\mathrm{Na}<\mathrm{Rb}<\mathrm{Cs}$$

$$\mathrm{K}<\mathrm{Cs}<\mathrm{Na}<\mathrm{Rb}$$

$$\mathrm{Na}<\mathrm{Rb}<\mathrm{K}<\mathrm{Cs}$$

JEE Main 2023 (Online) 12th April Morning Shift

MCQ (Single Correct Answer)

-1

Out of Syllabus

In the given reaction cycle

JEE Main 2023 (Online) 12th April Morning Shift Chemistry - s-Block Elements Question 14 English

X, Y and Z respectively are :

$$ \begin{array}{lll} \mathrm{X} & \mathrm{Y} & \mathrm{Z} \\ \mathrm{CaCO}_3 & \mathrm{NaCl} & \mathrm{KCl} \end{array} $$

$$ \begin{array}{lcl} \mathrm{X} & \mathrm{Y} & \mathrm{Z} \\ \mathrm{CaO} & \mathrm{NaCl}+\mathrm{CO}_2 & \mathrm{NaCl} \end{array} $$

$$ \begin{array}{lll} \mathrm{X} & \mathrm{Y} & \mathrm{Z} \\ \mathrm{CaCO}_3 & \mathrm{NaCl} & \mathrm{HCl} \end{array} $$

$$ \begin{array}{ccc} \mathrm{X} & \mathrm{Y} & \mathrm{Z} \\ \mathrm{CaO} & \mathrm{NaCl}+\mathrm{CO}_2 & \mathrm{KCI} \end{array} $$

JEE Main 2023 (Online) 11th April Evening Shift

MCQ (Single Correct Answer)

-1

Out of Syllabus

Alkali metal from the following with least melting point is :

$$\mathrm{Rb}$$

$$\mathrm{Na}$$

$$\mathrm{K}$$

$$\mathrm{Cs}$$

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