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p-Block Elements PYQs - Last 10 Years

JEE Main / Chemistry / Inorganic Chemistry / 230 recent questions

ChemistryInorganic Chemistry2017-2026
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Practice 230 JEE Main Chemistry questions from p-Block Elements. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.

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Chemistry / Inorganic Chemistry
2017-2026
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Last 10 Years p-Block Elements Questions

Showing 50 of 230 filtered questions.

1P Block Elements
Find the correct statements related to group 15 hydrides.
A. Reducing nature increases from $\mathrm{NH}_3$ to $\mathrm{BiH}_3$
B. Tendency to donate lone pair of electrons decreases from $\mathrm{NH}_3$ to $\mathrm{BiH}_3$
C. The stability...
MCQ+4 / -12026
2P Block Elements
Given below are two statements :
Statement I : Aluminium is more electropositive than thallium as the standard electrode potential value of $\mathrm{E}^{\circ} \mathrm{Al}^{3+} / \mathrm{Al}$ is negative and $\mathrm{E}^{\circ} \mathrm{Tl}^...
MCQ+4 / -12026
3P Block Elements
Treatment of a gas ' $X$ ' with a freshly prepared ferrous sulphate solution gives a compound ' $Y$ ' as a brown ring. The compounds X and Y are.
MCQ+4 / -12026
4P Block Elements
Correct statements from the following are:
A. Nitrogen in oxidation states from +1 to +4 disproportionates in acid medium.
B. Nitrogen has the ability to form $\mathrm{d} \pi$ - $\mathrm{p} \pi$ multiple bonds with itself and other elements...
MCQ+4 / -12026
5P Block Elements
Given below are two statements :
Statement I: Aluminium upon reaction with NaOH forms $\left[\mathrm{Al}(\mathrm{OH})_6\right]^{3-}$ ion.
Statement II : The geometry of $\mathrm{ICl}_4^{-}, \mathrm{ClO}_3^{-}$and $\mathrm{IBr}_2^{-}$is squa...
MCQ+4 / -12026
6P Block Elements
A monoatomic anion (A ) has 45 neutrons and 36 electrons. Atomic mass, group in the periodic table and physical state at room temperature of the element (A) respectively are
MCQ+4 / -12026
7P Block Elements
Given below are two statements :
Statement I : The covalency of oxygen is generally two but it can exceed upto four. The oxidation state of oxygen in $\mathrm{SO}_2$ is -2 and in $\mathrm{OF}_2$ it is +2 .
Statement II : The anomalous behav...
MCQ+4 / -12026
8P Block Elements
The electronegativity of a group 13 element ' E ' is same as that of Ge (on Pauling scale and upto one decimal point). The CORRECT statements about $\mathrm{E}^{3+}$ are
A. It can act as a reducing agent.
B. It can act as an oxidizing agent...
MCQ+4 / -12026
9P Block Elements
Given below are two statements :Statement I: The second ionization enthalpy of B, Al and Ga is in the order of B > Al > Ga.Statement II: The correct order in terms of first ionization enthalpy is Si < Ge < Pb < Sn.In the light of the above ...
MCQ+4 / -12026
10P Block Elements
Regarding the hydrides of group 15 elements $\mathrm{EH}_3(\mathrm{E}=\mathrm{N}, \mathrm{P}, \mathrm{As}, \mathrm{Sb})$, select the correct statement from the following :
A. The stability of hydrides decreases down the group.
B. The basici...
MCQ+4 / -12026
11P Block Elements
Given below are two statements :Statement I : The increasing order of boiling point of hydrogen halides is HCl < HBr < HI < HF.Statement II : The increasing order of melting point of hydrogen halides is HCl < HBr < HF < HI.In the light of t...
MCQ+4 / -12026
12P Block Elements
Consider the following reactions$\mathrm{Na_2B_4O_7} \xrightarrow{\Delta} 2X + Y\(\mathrm{CuSO_4} + Y \xrightarrow{\text{Non-Luminous flame}} Z + SO_3\)2Z + 2X + \text{Carbon} \xrightarrow{\text{Luminous flame}} 2Q + \mathrm{Na_2B_4O_7} + C...
MCQ+4 / -12026
13P Block Elements
" X " is an oxoanion of the lightest element of group 7 (in the periodic table). The metal is in +6 oxidation state in " X ". The color of the potassium salt of X is
MCQ+4 / -12026
14P Block Elements
Choose the INCORRECT statement
MCQ+4 / -12026
15P Block Elements
The correct statements from the following are :
A. Ionic radii of trivalent cations of group 13 elements decreases down the group.
B. Electronegativity of group 13 elements decreases down the group.
C. Among the group 13 elements, Boron has...
MCQ+4 / -12026
16P Block Elements
It is noticed that $\mathrm{Pb}^{2+}$ is more stable than $\mathrm{Pb}^{4+}$ but $\mathrm{Sn}^{2+}$ is less stable than $\mathrm{Sn}^{4+}$. Observe the following reactions.
$$ \begin{aligned} & \mathrm{PbO}_2+\mathrm{Pb} \rightarrow 2 \math...
MCQ+4 / -12026
17P Block Elements
A 'p'-block element $(\mathrm{E})$ and hydrogen form a binary cation $\left(\mathrm{EH}_{\mathrm{x}}\right)^{+}$, while $\mathrm{EH}_3$ on treatment with $\mathrm{K}_2 \mathrm{HgI}_4$ in alkaline medium gives a precipitate of basic mercury(...
MCQ+4 / -12026
18P Block Elements
Given below are two statements :
Statement I : The halogen that makes longest bond with hydrogen in HX, has the smallest covalent radius in its group.
Statement II : A group 15 element's hydride $\mathrm{EH}_3$ has the lowest boiling point ...
MCQ+4 / -12026
19P Block Elements
Given below are two statements :
Statement I : Elements ' $X$ ' and ' $Y$ ' are the most and least electronegative elements, respectively among $\mathrm{N}, \mathrm{As}, \mathrm{Sb}$ and P . The nature of the oxides $\mathrm{X}_2 \mathrm{O}...
MCQ+4 / -12026
20P Block Elements
Given below are two statements :
Statement I : The number of pairs among $\left[\mathrm{SiO}_2, \mathrm{CO}_2\right],\left[\mathrm{SnO}, \mathrm{SnO}_2\right],\left[\mathrm{PbO}, \mathrm{PbO}_2\right]$ and $\left[\mathrm{GeO}, \mathrm{GeO}_...
MCQ+4 / -12026
21P Block Elements
Consider the following reactions.
$\underset{\text { (Hot solution) }}{\mathrm{PbCl}_2}+\mathrm{K}_2 \mathrm{CrO}_4 \rightarrow A+2 \mathrm{KCl}$
$$ \begin{aligned} & \mathrm{A}+\mathrm{NaOH} \rightleftharpoons \mathrm{~B}+\mathrm{Na}_2 \ma...
MCQ+4 / -12026
22P Block Elements
The correct statements from the following are :(A) Tl3+ is a powerful oxidising agent(B) Al3+ does not get reduced easily(C) Both Al3+ and Tl3+ are very stable in solution(D) Tl1+ is more stable than Tl3+(E) Al3+ and Tl1+ are highly stableC...
MCQ+4 / -12025
23P Block Elements
Given below are the pairs of group 13 elements showing their relation in terms of atomic radius. $(\mathrm{B}<\mathrm{Al}),(\mathrm{Al}<\mathrm{Ga}),(\mathrm{Ga}<\mathrm{In})$ and $(\mathrm{In}<\mathrm{Tl})$

Identify the elements present i...
MCQ+4 / -12025
24P Block Elements
Given below are two statements:
Statement I: Nitrogen forms oxides with +1 to +5 oxidation states due to the formation of $\mathrm{p} \pi-\mathrm{p} \pi$ bond with oxygen.
Statement II: Nitrogen does not form halides with +5 oxidation state...
MCQ+4 / -12025
25P Block Elements
Given below are two statements :
Statement (I) : The first ionisation enthalpy of group 14 elements is higher than the corresponding elements of group 13.
Statement (II) : Melting points and boiling points of group 13 elements are in genera...
MCQ+4 / -12025
26P Block Elements
Given below are two statements :
Statement I : The N - N single bond is weaker and longer than that of P - P single bond.
Statement II : Compounds of group 15 elements in +3 oxidation states readily undergo disproportionation reactions.
In ...
MCQ+4 / -12025
27P Block Elements
The nature of oxide $\left(\mathrm{TeO}_2\right)$ and hydride $\left(\mathrm{TeH}_2\right)$ formed by Te , respectively are :
MCQ+4 / -12025
28P Block Elements
A group 15 element forms $\mathrm{d} \pi-\mathrm{d} \pi$ bond with transition metals. It also forms hydride, which is a strongest base among the hydrides of other group members that form $d \pi-d \pi$ bond. The atomic number of the element ...
INTEGER+4 / -12025
29P Block Elements
The large difference between the melting and boiling points of oxygen and sulphur may be explained on the basis of
MCQ+4 / -12025
30P Block Elements
The incorrect statement among the following is
MCQ+4 / -12025
31P Block Elements
The maximum covalency of a non-metallic group 15 element ' E ' with weakest $\mathrm{E}-\mathrm{E}$ bond is :
MCQ+4 / -12025
32P Block Elements
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Both rhombic and monoclinic sulphur exist as \(\mathrm{S}_8\) while oxygen exists as \(\mathrm{O}_2\).
Reason (R) : O...
MCQ+4 / -12024
33P Block Elements
On reaction of Lead Sulphide with dilute nitric acid which of the following is not formed?
MCQ+4 / -12024
34P Block Elements
Number of oxygen atoms present in chemical formula of fuming sulphuric acid is ___________.
INTEGER+4 / -12024
35P Block Elements
Among the following halogens
\(\mathrm{F}_2, \mathrm{Cl}_2, \mathrm{Br}_2 \text { and } \mathrm{I}_2\)
Which can undergo disproportionation reactions?
MCQ+4 / -12024
36P Block Elements
Give below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: The stability order of +1 oxidation state of \(\mathrm{Ga}\), In and \(\mathrm{Tl}\) is Ga < In < Tl.
Reason R: The inert pair...
MCQ+4 / -12024
37P Block Elements
Identify the incorrect statements about group 15 elements :
(A) Dinitrogen is a diatomic gas which acts like an inert gas at room temperature.
(B) The common oxidation states of these elements are \(-3,+3\) and +5.
(C) Nitrogen has unique a...
MCQ+4 / -12024
38P Block Elements
In qualitative test for identification of presence of phosphorous, the compound is heated with an oxidising agent. Which is further treated with nitric acid and ammonium molybdate respectively. The yellow coloured precipitate obtained is :
MCQ+4 / -12024
39P Block Elements
Identify the correct statements about p-block elements and their compounds.
(A) Non metals have higher electronegativity than metals.
(B) Non metals have lower ionisation enthalpy than metals.
(C) Compounds formed between highly reactive no...
MCQ+4 / -12024
40P Block Elements
Which of the following material is not a semiconductor.
MCQ+4 / -12024
41P Block Elements
Given below are two statements :
Statement I : Gallium is used in the manufacturing of thermometers.
Statement II : A thermometer containing gallium is useful for measuring the freezing point \((256 \mathrm{~K})\) of brine solution.
In the ...
MCQ+4 / -12024
42P Block Elements
Evaluate the following statements related to group 14 elements for their correctness.
(A) Covalent radius decreases down the group from \(\mathrm{C}\) to \(\mathrm{Pb}\) in a regular manner.
(B) Electronegativity decreases from $$\mathrm{C}...
MCQ+4 / -12024
43P Block Elements
The number of neutrons present in the more abundant isotope of boron is '\(x\)'. Amorphous boron upon heating with air forms a product, in which the oxidation state of boron is '\(y\)'. The value of \(x+y\) is _________ .
MCQ+4 / -12024
44P Block Elements
The correct statements from the following are :
(A) The decreasing order of atomic radii of group 13 elements is \(\mathrm{Tl}>\mathrm{In}>\mathrm{Ga}>\mathrm{Al}>\mathrm{B}\).
(B) Down the group 13 electronegativity decreases from top to b...
MCQ+4 / -12024
45P Block Elements
Give below are two statements:
Statement - I: Noble gases have very high boiling points.
Statement - II: Noble gases are monoatomic gases. They are held together by strong dispersion forces. Because of this they are liquefied at very low te...
MCQ+4 / -12024
46P Block Elements
Consider the oxides of group 14 elements
\(\mathrm{SiO}_2, \mathrm{GeO}_2, \mathrm{SnO}_2, \mathrm{PbO}_2, \mathrm{CO}\) and \(\mathrm{GeO}\). The amphoteric oxides are
MCQ+4 / -12024
47P Block Elements
Choose the correct statements from the following
A. All group 16 elements form oxides of general formula \(\mathrm{EO}_2\) and \(\mathrm{EO}_3\), where \(\mathrm{E}=\mathrm{S}, \mathrm{Se}, \mathrm{Te}\) and \(\mathrm{Po}\). Both the types ...
MCQ+4 / -12024
48P Block Elements
Given below are two statements:
Statement I : \(\mathrm{S}_8\) solid undergoes disproportionation reaction under alkaline conditions to form \(\mathrm{S}^{2-}\) and \(\mathrm{S}_2 \mathrm{O}_3{ }^{2-}\).
Statement II : $$\mathrm{ClO}_4^{-}$...
MCQ+4 / -12024
49P Block Elements
Given below are two statements:
Statement I : Group 13 trivalent halides get easily hydrolyzed by water due to their covalent nature.
Statement II : \(\mathrm{AlCl}_3\) upon hydrolysis in acidified aqueous solution forms octahedral $$\left[...
MCQ+4 / -12024
50P Block Elements
The Lassiagne's extract is boiled with dil \(\mathrm{HNO}_3\) before testing for halogens because,
MCQ+4 / -12024