TG EAPCET 2024 (Online) 9th May Evening Shift | p-Block Elements Question 1 | Chemistry

$$ \begin{array}{r} \mathrm{BF}_3+\mathrm{NaH} \xrightarrow{450 \mathrm{~K}} X+\mathrm{NaF} \\ X+\mathrm{H}_2 \mathrm{O} \longrightarrow Y+\mathrm{H}_2 \uparrow \end{array} $$

The correct statements about $X$ and $Y$ are

I. $X$ is an electron deficient molecule.

II. in $X, B-B$ bond is present.

III. $Y$ is a weak tribasic acid.

IV. $Y$ acts as a Lewis acid.

I and IV

II and III

II and IV

I and III

TG EAPCET 2024 (Online) 9th May Evening Shift

MCQ (Single Correct Answer)

-0

Which of the following does not exist?

$\left[\mathrm{GeCl}_6\right]^{-2}$

$\left[\mathrm{SiF}_6\right]^{2-}$

$\left[\mathrm{SCl}_6\right]^{2-}$

$\left[\mathrm{Sn}(\mathrm{OH})_6\right]^{2-}$

TG EAPCET 2024 (Online) 9th May Evening Shift

MCQ (Single Correct Answer)

-0

Consider the following reactions.

$$ X+\mathrm{O}_2 \rightarrow \mathrm{Cu}_2 \mathrm{O}+\mathrm{SO}_2, \mathrm{Cu}_2 \mathrm{O}+X \rightarrow \mathrm{Cu}+Y \uparrow $$

The shape of the molecule $Y$ is

linear

tetrahedral

pyramidal

angular

TG EAPCET 2024 (Online) 9th May Evening Shift

MCQ (Single Correct Answer)

-0

In contact process of manufacture of $\mathrm{H}_2 \mathrm{SO}_4$, the arsenic purifier used in the industrial plant contains

$\mathrm{Al}_2 \mathrm{O}_3 \cdot x \mathrm{H}_2 \mathrm{O}$

$\mathrm{FeO} \cdot \mathrm{XH}_2 \mathrm{O}$

$\mathrm{Cr}_2 \mathrm{O}_3 \cdot x \mathrm{H}_2 \mathrm{O}$

$\mathrm{Fe}_2 \mathrm{O}_3 \cdot x \mathrm{H}_2 \mathrm{O}$

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