Core Syllabus Module

s and p-Block Elements

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Chapter Elite-20 Challenge Zone

Target Advanced

JEE Advanced 2020

LEVELJEE Advanced

With respect to hypochlorite, chlorate and perchlorate ions, choose the correct statement(s).

* Multiple Correct Options

(A)

The hypochlorite ion is the strongest conjugate base.

(B)

The molecular shape of only chlorate ion is influenced by the lone pair of electrons of Cl.

(C)

The hypochlorite and chlorate ions disproportionate to give rise to identical set of ions.

(D)

The hypochlorite ion oxidizes the sulfite ion.

JEE Advanced 2022

LEVELJEE Advanced

LIST-I contains compounds and LIST-II contains reactions. Match each compound in LIST-I with its formation reaction(s) in LIST-II.

List-I

(P)

H_{2} O_{2}

(Q)

Mg(OH)_{2}

(R)

BaCl_{2}

(S)

CaCO_{3}

List-II

(1)

Mg(HCO_{3})_{2} + Ca(OH)_{2} \to

(2)

BaO_{2} + H_{2} SO_{4} \to

(3)

Ca(OH)_{2} + MgCl_{2} \to

(4)

BaO_{2} + HCl \to

(5)

Ca(HCO_{3})_{2} + Ca(OH)_{2} \to

JEE Advanced 2014

LEVELJEE Advanced

Under ambient conditions, the total number of gases released as products in the final step of the reaction scheme shown below is

The total number of compounds having at least one bridging oxo group among the molecules given below is______. $N_{2} O_{3}$ , $N_{2} O_{5}$ , $P_{4} O_{6}$ , $P_{4} O_{7}$ , $H_{4} P_{2} O_{5}$ , $H_{5} P_{3} O_{10}$ , $H_{2} S_{2} O_{3}$ , $H_{2} S_{2} O_{5}$

JEE Advanced 2014

LEVELJEE Advanced

The pair(s) of reagents that yield paramagnetic species is / are :

* Multiple Correct Options

(A)

Na and excess of

NH_{3}

(B)

K and excess of

O_{2}

(C)

Cu and dilute

HNO_{3}

(D)

O_{2}

and 2-ethylanthraquinol

JEE Main 2021

LEVELJEE Advanced

Choose the correct statement from the following.

(A)

The standard enthalpy of formation for alkali metal bromide becomes less negative on descending the group.

(B)

The low solubility of CsI in water is due to its high lattice enthalpy.

(C)

Among the alkali metal halides, LiF is least soluble in water.

(D)

LiF has least negative standard enthalpy of formation among alkali metal fluorides.

JEE Advanced 2026

LEVELJEE Advanced

Correct statement(s) about the compounds P, Q and R is(are) $Xe (g) + F_{2} (g) 873 K, 7 bar P$ (1 : 5 ratio) $P + O_{2} F_{2} 143 K Q + O_{2}$ $Q + H_{2} O complete hydrolysis R + HF$

* Multiple Correct Options

(A)

P has two lone pairs of electrons on the central atom.

(B)

Q has a perfect octahedral geometry.

(C)

Q can act as a fluorinating agent.

(D)

The molecular structure of R is trigonal pyramidal.

JEE Advanced 2026

LEVELJEE Advanced

Correct statement(s) about the compounds $X$ , $Y$ and $Z$ is (are) $MnO_{2} + Conc. HCl ⟶ MnCl_{2} + (greenish yellow gas) X + H_{2} O$ $NH_{3} + (excess) X ⟶ Y + \dots$ $X + (excess) F_{2} 573 K Z$

* Multiple Correct Options

(A)

X

is used for sterlizing drinking water.

(B)

Y

has a planar structure.

(C)

Z

is used in the enrichment of

^{235} U

(D)

Y

is a stronger Lewis base than ammonia.

JEE Main 2026

LEVELJEE Advanced

Reaction of $P t F_{6}$ with oxygen ( $O_{2}$ ) gas results in the formation of an ionic compound, $X^{+} Y^{-}$ . Correct statement(s) is (are)

* Multiple Correct Options

(A)

The bond order of

X^{+}

is 1.5.

(B)

Valence d-orbitals of the metal ion in

X^{+} Y^{-}

has 5 electrons.

(C)

P t F_{6}

acts as an oxidant in this reaction.

(D)

P t F_{6}

acts as a fluorinating agent in this reaction.

JEE Advanced 2022

LEVELJEE Advanced

The compound(s) which react(s) with $NH_{3}$ to give boron nitride (BN) is(are)

* Multiple Correct Options

(A)

(B)

B_{2} H_{6}

(C)

B_{2} O_{3}

(D)

HBF_{4}

JEE Advanced 2017

LEVELJEE Advanced

Comprehension Passage

Upon heating

KClO_{3}

in the presence of catalytic amount of

MnO_{2}

, a gas

W

is formed. Excess amount of

W

reacts with white phosphorus to give

X

. The reaction of

X

with pure

HNO_{3}

gives

Y

and

Z

Question 1:

$W$ and $X$ are, respectively

(A)

O_{3}

and

P_{4} O_{6}

(B)

O_{2}

and

P_{4} O_{10}

(C)

O_{3}

and

P_{4} O_{10}

(D)

O_{2}

and

P_{4} O_{6}

Question 2:

$Y$ and $Z$ are , respectively

(A)

N_{2} O_{4}

and

H_{3} PO_{3}

(B)

N_{2} O_{4}

and

HPO_{3}

(C)

N_{2} O_{5}

and

HPO_{3}

(D)

N_{2} O_{3}

and

H_{3} PO_{4}

JEE Advanced 2015

LEVELJEE Advanced

$Fe^{3 +}$ is reduced to $Fe^{2 +}$ by using -

* Multiple Correct Options

(A)

H_{2} O_{2}

in presence of

NaOH

(B)

Na_{2} O_{2}

in water

(C)

H_{2} O_{2}

in presence of

H_{2} SO_{4}

(D)

Na_{2} O_{2}

in presence of

H_{2} SO_{4}

JEE Advanced 2023

LEVELJEE Advanced

Match the reactions (in the given stoichiometry of the reactants) in List-I with one of their products given in List-II and choose the correct option.

List-I

(P)

P_{2} O_{3} + 3 H_{2} O \to

(Q)

P_{4} + 3 NaOH + 3 H_{2} O \to

(R)

PCl_{5} + CH_{3} COOH \to

(S)

H_{3} PO_{2} + 2 H_{2} O + 4 AgNO_{3} \to

List-II

(1)

P(O)(OCH_{3})Cl_{2}

(2)

H_{3} PO_{3}

(3)

PH_{3}

(4)

POCl_{3}

(5)

H_{3} PO_{4}

JEE Advanced 2014

LEVELJEE Advanced

The correct statements(s) for orthoboric acid is/are-

* Multiple Correct Options

(A)

It behaves as a weak acid in water due to self ionization

(B)

Acidity of its aqueous solution increses upon addition of ethylene glycol

(C)

It has a three dimensional structure due to hydrogen bonding.

(D)

It is a weak electrolyte in water

JEE Advanced 2022

LEVELJEE Advanced

The reaction of Xe and $O_{2} F_{2}$ gives a Xe compound P. The number of moles of HF produced by the complete hydrolysis of 1 mol of P is _______.

JEE Advanced 2020

LEVELJEE Advanced

Choose the correct statement(s) among the following.

* Multiple Correct Options

(A)

SnCl_{2} \cdot 2 H_{2} O

is a reducing agent.

(B)

SnO_{2}

reacts with KOH to form

K_{2} [Sn(OH)_{6}]

(C)

A solution of

PbCl_{2}

in HCl contains

Pb^{2 +}

and

Cl^{-}

ions.

(D)

The reaction of

Pb_{3} O_{4}

with hot dilute nitric acid to give

PbO_{2}

is a redox reaction.

JEE Advanced 2016

LEVELJEE Advanced

The nitrogen containing compound produced in the reaction of $HNO_{3}$ with $P_{4} O_{10}$

* Multiple Correct Options

(A)

can also be prepared by reaction of

P_{4}

and

HNO_{3}

(B)

is diamagnetic

(C)

contains one N-N bond

(D)

reacts with Na metal producing a brown gas

JEE Advanced 2019

LEVELJEE Advanced

A tin chloride $Q$ undergoes the following reactions (not balanced) $Q + Cl^{-} \to X$ $Q + Me_{3} N \to Y$ $Q + CuCl_{2} \to Z + CuCl$ $X$ is a monoanion having pyramidal geometry. Both $Y$ and $Z$ are neutral compounds. Choose the correct option(s).

* Multiple Correct Options

(A)

The central atoms in

X

sp^{3}

hybridized

(B)

The oxidation state of the central atom in

Z

+ 2

(C)

The central atom in

Z

has one lone pair of electrons

(D)

There is a coordinate bond in

Y

JEE Advanced 2017

LEVELJEE Advanced

The colour of the $X_{2}$ molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to -

* Multiple Correct Options

(A)

the physical state of

X_{2}

at room temperature changes from gas to solid down the group

(B)

decrease in HOMO-LUMO gap down the group

(C)

decrease in

π^{*}

σ^{*}

down the group

(D)

decrease in ionization energy down the group

JEE Main 2020

LEVELJEE Advanced

The reaction of $H_{3} N_{3} B_{3} C l_{3}$ (A) with $L i B H_{4}$ in tetrahydrofuran gives inorganic benzene (B). Further, the reaction of (A) with (C) leads to $H_{3} N_{3} B_{3} (M e)_{3}$ . Compounds (B) and (C) respectively, are

(A)

diborane and MeMgBr

(B)

boron nitride and MeBr

Micro-Topic Strategy Matrix

Hydrogen, Hydrides and Water

Alkali Metals

Alkaline Metals

Group 13 Elements

Group 14 Elements

Group 15 Elements

Group 16 Elements

Group 17 Elements

Group 18 Elements

Chapter Elite-20 Challenge Zone

With respect to hypochlorite, chlorate and perchlorate ions, choose the correct statement(s).

LIST-I contains compounds and LIST-II contains reactions. Match each compound in LIST-I with its formation reaction(s) in LIST-II.

List-I

List-II

Under ambient conditions, the total number of gases released as products in the final step of the reaction scheme shown below is

The pair(s) of reagents that yield paramagnetic species is / are :

Choose the correct statement from the following.

.math-text-wrapper .katex { font-size: 1.05em !important; } .math-text-wrapper .katex-display { margin: 1rem 0 !important; } Correct statement(s) about the compounds P, Q and R is(are) Xe (g)+F2​(g)873 K, 7 bar​P (1 : 5 ratio) P+O2​F2​143 K​Q+O2​ Q+H2​Ocomplete hydrolysis​R+HF

.math-text-wrapper .katex { font-size: 1.05em !important; } .math-text-wrapper .katex-display { margin: 1rem 0 !important; } Reaction of PtF6​ with oxygen (O2​) gas results in the formation of an ionic compound, X+Y−. Correct statement(s) is (are)

.math-text-wrapper .katex { font-size: 1.05em !important; } .math-text-wrapper .katex-display { margin: 1rem 0 !important; } The compound(s) which react(s) with NH3​ to give boron nitride (BN) is(are)

Comprehension Passage

.math-text-wrapper .katex { font-size: 1.05em !important; } .math-text-wrapper .katex-display { margin: 1rem 0 !important; } W and X are, respectively

.math-text-wrapper .katex { font-size: 1.05em !important; } .math-text-wrapper .katex-display { margin: 1rem 0 !important; } Y and Z are , respectively

.math-text-wrapper .katex { font-size: 1.05em !important; } .math-text-wrapper .katex-display { margin: 1rem 0 !important; } Fe3+ is reduced to Fe2+ by using -

Match the reactions (in the given stoichiometry of the reactants) in List-I with one of their products given in List-II and choose the correct option.

List-I

List-II

The correct statements(s) for orthoboric acid is/are-

.math-text-wrapper .katex { font-size: 1.05em !important; } .math-text-wrapper .katex-display { margin: 1rem 0 !important; } The reaction of Xe and O2​F2​ gives a Xe compound P. The number of moles of HF produced by the complete hydrolysis of 1 mol of P is _______.

Choose the correct statement(s) among the following.

.math-text-wrapper .katex { font-size: 1.05em !important; } .math-text-wrapper .katex-display { margin: 1rem 0 !important; } The nitrogen containing compound produced in the reaction of HNO3​ with P4​O10​

.math-text-wrapper .katex { font-size: 1.05em !important; } .math-text-wrapper .katex-display { margin: 1rem 0 !important; } The colour of the X2​ molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to -

Correct statement(s) about the compounds P, Q and R is(are) $Xe (g) + F_{2} (g) 873 K, 7 bar P$ (1 : 5 ratio) $P + O_{2} F_{2} 143 K Q + O_{2}$ $Q + H_{2} O complete hydrolysis R + HF$

Reaction of $P t F_{6}$ with oxygen ( $O_{2}$ ) gas results in the formation of an ionic compound, $X^{+} Y^{-}$ . Correct statement(s) is (are)

The compound(s) which react(s) with $NH_{3}$ to give boron nitride (BN) is(are)

$W$ and $X$ are, respectively

$Y$ and $Z$ are , respectively

$Fe^{3 +}$ is reduced to $Fe^{2 +}$ by using -

The reaction of Xe and $O_{2} F_{2}$ gives a Xe compound P. The number of moles of HF produced by the complete hydrolysis of 1 mol of P is _______.

The nitrogen containing compound produced in the reaction of $HNO_{3}$ with $P_{4} O_{10}$

The colour of the $X_{2}$ molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to -