JEE Advanced
p-Block Elements
Previous Years Questions

MCQ (More than One Correct Answer)

The compound(s) which react(s) with $\mathrm{NH}_{3}$ to give boron nitride (BN) is(are)
The correct statement(s) related to oxoacids of phosphorous is(are)
Consider the following reactions (unbalanced).$$Zn + Hot\,conc.\,{H_2}S{O_4}\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{}} G + R + X$$$$Zn + co...
A tin chloride Q undergoes the following reactions (not balanced)$$Q + C{l^ - } \to X$$$$Q + M{e_3}N \to Y$$$$Q + CuC{l_2} \to Z + CuCl$$X is a monoan...
The compounds(s) which generate(s) $${N_2}$$ gas upon thermal decomposition below $${300^ \circ }C$$ is (are)
Based on the compounds of group $$15$$ elements, the correct statement(s) is (are)
The correct statement(s) about the oxoacids, $$HCl{O_4}$$ and $$HClO,$$ is (are)
The color of the $${X_2}$$ molecules of group $$17$$ elements changes gradually from yellow to violet down the group. This is due to
The nitrogen containing compound produced in the reaction of HNO3 with P4O10
The crystalline form of borax has.
The correct statements regarding (i) HClO, (ii) HClO2, (iii) HClO3 and (iv) HClO4 is (are)
The correct statement(s) for orthoboric acid is/are
The correct statement(s) about O3 is(are)
With respect to graphite and diamond, which of the statement(s) given below is(are) correct?
Which of the following hydrogen halides reacts with AgNO3(aq.) to give a precipitate that dissolves in Na2S2O3 (aq.) ?...

MCQ (Single Correct Answer)

The reaction of $\mathrm{HClO}_{3}$ with $\mathrm{HCl}$ gives a paramagnetic gas, which upon reaction with $\mathrm{O}_{3}$ produces
The reaction of $\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}$ and $\mathrm{NaCl}$ in water produces a precipitate that dissolves upon the addition of ...
A colourless aqueous solution contains nitrates of two metals, X and Y. When it was added to an aqueous solution of NaCl, a white precipitate was form...
$$W$$ and $$X$$ are, respectively
$$Y$$ and $$Z$$ are, respectively
The increasing order of atomic radii of the following group 13 elements is
The product formed in the reaction of SOCl2 with white phosphorus is
Under ambient conditions, the total number of gases released as products in the final step of the reaction scheme shown below is ...
P and Q, respectively, are the sodium salts of
R, S and T respectively, are
The unbalanced chemical reactions given in List I show missing reagent or condition (?) which are provided in List II. Match List I with List II and s...
Concentrated nitric acid, upon long standing, turns yellow-brown due to the formation of
The reaction of white phosphorous with aqueous NaOH gives phosphine along with another phosphorus containing compound. The reaction type; the oxidatio...
Bleaching powder contains a salt of an oxoacid as one of its components. The anhydride of that oxoacid is
25 mL of household bleach solution was mixed with 30 mL of 0.50 M KI and 10 mL of 4 N acetic acid. In the titration of the liberated iodine, 48 mL of ...
Which ordering of compounds is according to the decreasing order of the oxidation state of nitrogen?


Dissolving $1.24 \mathrm{~g}$ of white phosphorous in boiling $\mathrm{NaOH}$ solution in an inert atmosphere gives a gas $\mathbf{Q}$. The amount of ...
Among B2H6, B3N3H6, N2O, N2O4, H2S2O3 and H2S2O8, the total number of molecules containing covalent bond between two atoms of the same kind is ..........
At 143 K, the reaction of XeF4 with O2F2 produces a xenon compound Y. The total number of lone pair(s) of electrons present on the whole molecule of Y...
The total number of compounds having at least one bridging oxo group among the molecules given below is _________. $${N_2}{O_3},{N_2}{O_5},$$ $${P_4}...
Three moles of B2H6 are completely reacted with methanol. The number of moles of boron containing product formed is ____________....
The number of lone pairs of electrons in N2O3 is ___________.
The value of $$n$$ in the molecular formula $$\mathrm{Be_n Al_2Si_6O_{18}}$$ is ___________.
The total number of diprotic acids among the following is: H3PO4, H2SO4, H3PO3, H2CO3, H2S2O7, H3BO3, H3PO2, H2CrO4 and H2SO3 ...
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