EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - p- Block Elements>AP EAPCET 2021 (19-Aug Forenoon)>Q 28

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IMPORTANT

Earn 100

Match the following compounds with their corresponding physical properties:

Column-I Column-II

(a) $IBr$ (i) Orange solid

(b) ${ClF}_{3}$ (ii) Yellow-green liquid

(c) ${BrF}_{3}$ (iii) Black solid

(d) ${ICl}_{3}$ (iv) Colorless gas

40% studentsanswered this correctly

Important Questions on p- Block Elements

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - p- Block Elements>AP EAPCET 2021 (19-Aug Afternoon)>Q 1

The incorrect statement among the following is /are

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - p- Block Elements>AP EAPCET - 20 Aug 2021 Forenoon>Q 2

Which of the following statement is incorrect?

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - p- Block Elements>AP EAPCET 2021 (19-Aug Afternoon)>Q 3

Assertion

(A) :

The colour of old lead paintings can be restored by washing them with a dilute solution of

H_{2} O_{2}

.
Reason

(R) :

Hydrogen peroxide reduces

PbS

to

Pb

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - p- Block Elements>AP EAPCET - 20 Aug 2021 Forenoon>Q 4

What would be the product of following reaction

{SiCl}_{4} \overset{Excess of H_{2} O}{⟶}

? (Major Product)

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - p- Block Elements>AP EAPCET 2019 (21-Apr Shift-2)>Q 5

Identify the correct statements

I)

Germanium exists only in traces.

II)

The order of electronegativity of

Si, Ge, Sn

is

Sn > Ge > Si

III)

All group

14

elements are available in solid state

EASY

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - p- Block Elements>AP EAPCET - 20 Aug 2021 Afternoon>Q 6

H_{3} {BO}_{3}

or

B (OH)_{3}

is considered as an acid because its molecule

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - p- Block Elements>AP EAPCET 2020 (Sep-23 Shift-1)>Q 7

Which of the following represents the structure of inorganic benzene?

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - p- Block Elements>AP EAPCET 2019 (21-Apr Shift-2)>Q 8

Which of the following reactions can be used to prepare diborane?

$I)^{} {BF}_{3} + LiAl H_{4} \overset{ether}{\to}$

$II)$ ${BF}_{3} + NaH \overset{450 K}{⟶}$
$III) {Na}_{2} B_{4} O_{7} + H_{2} O ⟶$
$IV) {NaBH}_{4} + I_{2} ⟶$