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 electron gain enthalpy (in kJ m o l ) of fluorine, chlorine, bromine and iodine, respectively, are

- 333 , - 349 , - 325 and - 296

- 296 , - 325 , - 333 and - 349

- 349 , - 333 , - 325 and - 296

- 333 , - 325 , - 349 and - 296

EASY

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The ionisation enthalpy of _____ is highest among the halogens.

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Important Questions on The p-Block Elements

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

Assertion (A) : The bond dissociation energy increases from $F_{2}$ to ${Cl}_{2}$ and then decreases to $I_{2}$

Reason (R) : The low bond energy of fluorine is due to the repulsion between the lone pairs of electrons in two fluorine atoms.
The correct option among the following is

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

Which one of the following orders is correct for the bond dissociation enthalpy of halogen molecules?

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

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

HARD

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

What are the correct orders of bond lengths

d_{X - X}

and bond dissociation enthalpies

{BDE}_{X - X}

for

F_{2}

and

{Cl}_{2}

? (where

X = F

Cl

)

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

The increasing order of the atomic radii of the following elements is:

(a) C

(b) O

(c) F

(d) C l

(e) B r

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

The most electronegative element belongs to _________

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

Why is

F_{2}

the strongest oxidizing agent (among halogens) although electron affinity of

{Cl}_{2}

is higher than

F_{2} ?

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

The bond dissociation energy is highest for

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

The electron gain enthalpy

Δ_{eg} H

Cl (g)

- 349 kJ {mol}^{- 1}

. If the ground state energy of

Cl (g)

x kJ {mol}^{- 1},

the ground state energy

(in kJ {mol}^{- 1})

{Cl}^{-} (g)

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

Which of the following has highest electron affinity?

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

Which halogen has the highest value of negative electron gain enthalpy?

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

The electron gain enthalpy (in

\frac{kJ}{m o l}

) of fluorine, chlorine, bromine and iodine, respectively, are

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

Pick the correct statement:

HARD

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

Which of the following facts related to halogens is not correctly matched ?

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

The property of halogens which is not correctly matched is

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

The correct order of the thermal stability of hydrogen halides

(H - X)

HARD

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

The correct increasing order of the magnitude of enthalpies of formation for alkali metal halides is:

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

The strongest reducing agent amongst the following is:

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

Arrange the following bonds according to their average bond energies in descending order:

C - C l, C - B r, C - F, C - I

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 17 Elements

Which among the following does not form polyhalide ion?

The ionisation enthalpy of _____ is highest among the halogens.

Important Questions on The p-Block Elements

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