Some P Block Elements · Chemistry · WB JEE
MCQ (Single Correct Answer)
1
How many $$\mathrm{P}-\mathrm{O}-\mathrm{P}$$ linkages are there in $$\mathrm{P}_4 \mathrm{O}_{10}$$
WB JEE 2024
2
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
WB JEE 2024
3
The correct order of acidity of the following hydra acids is
WB JEE 2022
4
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
5
Cl2O7 is the anhydride of
WB JEE 2018
6
Which of the following is present in maximum amount in 'acid rain'?
WB JEE 2018
7
Which of the set of oxides are arranged in the proper order of basic, amphoteric, acidic?
WB JEE 2018
8
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
9
Nitrogen dioxide is not produced on heating
WB JEE 2016
10
In the solid state, PCl5 exists as
WB JEE 2016
11
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?
WB JEE 2020
3
SiO2 is attacked by which one/ones of the following?
WB JEE 2020
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
WB JEE 2018
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