Some P Block Elements · Chemistry · WB JEE
MCQ (Single Correct Answer)
1
Which of the following is the structure of pyrosulphuric acid?
WB JEE 2026
2
Borazole is prepared by heating the product isolated by reacting
WB JEE 2026
3
The number of lone pair of electrons and the hybridization of Xenon ( Xe ) in $\mathrm{XeOF}_2$ are
WB JEE 2025
4
The number of terminal and bridging hydrogens in $\mathrm{B}_2 \mathrm{H}_6$ are respectively
WB JEE 2025
5
How many $$\mathrm{P}-\mathrm{O}-\mathrm{P}$$ linkages are there in $$\mathrm{P}_4 \mathrm{O}_{10}$$
WB JEE 2024
6
The number(s) of $$-\mathrm{OH}$$ group(s) present in $$\mathrm{H}_3 \mathrm{PO}_3$$ and $$\mathrm{H}_3 \mathrm{PO}_4$$ is/are
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7
The correct order of acidity of the following hydra acids is
WB JEE 2022
8
Cyclo [18] carbon is an allotrope of carbon with molecular formula C18. It is a ring of 18 carbon atoms, connected by single and triple bonds. The total number of triple bonds present in this cyclocarbon are
WB JEE 2021
9
Cl2O7 is the anhydride of
WB JEE 2018
10
Which of the following is present in maximum amount in 'acid rain'?
WB JEE 2018
11
Which of the set of oxides are arranged in the proper order of basic, amphoteric, acidic?
WB JEE 2018
12
When BaCl2 is added to an aqueous salt solution, a white precipitate is obtained. The anion among CO$$_3^{2 - }$$, SO$$_3^{2 - }$$ and SO$$_4^{2 - }$$ that was present in the solution can be
WB JEE 2017
13
Nitrogen dioxide is not produced on heating
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14
In the solid state, PCl5 exists as
WB JEE 2016
15
The acid in which O$$-$$O bonding is present is
WB JEE 2016
MCQ (More than One Correct Answer)
1
Reaction of silver nitrate solution with phosphorus acid produces
WB JEE 2021
2
Which of the following statement(s) is/are incorrect?
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3
SiO2 is attacked by which one/ones of the following?
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4
Which of the following chemicals may be used to identify three unlabelled beakers containing conc. NaOH, conc. H2SO4 and water?
WB JEE 2019
5
White phosphorus P4 has the following characteristics
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6
Which of the following statement(s) is (are) correct when a mixture of NaCl and K2Cr2O7 is gently warmed with conc. H2SO4?
WB JEE 2016