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

( a − iii ) , ( b − iv ) , ( c − ii ) , ( d − i )

( a − ii ) , ( b − i ) , ( c − iv ) , ( d − ii )

( a − i ) , ( b − ii ) , ( c − ii ) , ( d − iv )

( a − iv ) , ( b − ii ) , ( c − i ) , ( d − iii )

The incorrect statement among the following is /are

Pb prefers to form tetravalent compounds

NCl 5 does not exist while PCl 5 does

The three C - O bonds are equal in the CO 3 2 - ion

Both O 2 + and NO are paramagnetic

The structure of diborane B 2 H 6 is given below. Identify the bond angles x , y . In diborane, which bonds are commonly known as banana-bonds

x = 120 ° , y = 97 ° and 3 - centered - 2 - electron bonds

x = 101 ° , y = 118 ° and 2 - centered - 3 - electron bonds

x = 118 ° , y = 79 ° and ionic bond between the two B's

x = 79 ° , y = 118 ° and ionic bond between the two B's

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

Both A and R are true and R is a correct explanation for A

Both A and R are true but R is not a correct explanation for A

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

( a − iii ) , ( b − iv ) , ( c − ii ) , ( d − i )

( a − ii ) , ( b − i ) , ( c − iv ) , ( d − ii )

( a − i ) , ( b − ii ) , ( c − ii ) , ( d − iv )

( a − iv ) , ( b − ii ) , ( c − i ) , ( d − iii )

The correct order of acidic character of the following is:

H 2 Te > H 2 Se > H 2 S > H 2 O

H 2 O > H 2 S > H 2 Se > H 2 Te

H 2 Se > H 2 S > H 2 O > H 2 Te

H 2 Te > H 2 S > H 2 Se > H 2 O

E M B I B E

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 1 - p- Block Elements>AP EAPCET 2021 (19-Aug Afternoon)>Q 27

MEDIUM

AP EAPCET

IMPORTANT

Earn 100

Which statements among the following are correct about Helium?
(i) Liquid helium is used to sustain powerful superconducting magnets.
(ii) Liquid helium is useful to carry low temperature experiments.
(iii) It is a heavy gas.
(iv) It is a flammable gas.

60% studentsanswered this correctly

Important Questions on p- Block Elements

EASY

AP EAPCET

IMPORTANT

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

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

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Which statements among the following are correct about Helium? (i) Liquid helium is used to sustain powerful superconducting magnets. (ii) Liquid helium is useful to carry low temperature experiments. (iii) It is a heavy gas. (iv) It is a flammable gas.

Important Questions on p- Block Elements

Learn and Prepare for any exam you want !

Which statements among the following are correct about Helium?
(i) Liquid helium is used to sustain powerful superconducting magnets.
(ii) Liquid helium is useful to carry low temperature experiments.
(iii) It is a heavy gas.
(iv) It is a flammable gas.