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p-Block Elements: Groups 15 and 16

220 questions in 6 topics. 44 NEET level, 88 JEE Main, 88 JEE Advanced. Every question was written for this chapter and solved independently a second time before publication.

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Trends in groups 15 and 16 36

The first ionisation enthalpy of nitrogen is higher than that of oxygen mainly because
Which of the following hydrides of group 15 is the least thermally stable?
Bismuth shows +3 as its most stable oxidation state, rather than +5, because of
Among H2O, H2S, H2Se and H2Te, the strongest acid in aqueous solution is
Oxygen exists as discrete O2 molecules, whereas sulphur exists as puckered S8 rings. The best explanation is t...
Which of the following correctly describes the nature of the oxides N2O3, As2O3 and Bi2O3 respectively?
Consider the statements: (I) The electron gain enthalpy of sulphur is more negative than that of oxygen. (II) ...
Nitrogen forms NCl3 but not NCl5, whereas phosphorus forms both PCl3 and PCl5. The reason is that
All 36 questions on this topic

p-Block Elements: Groups 15 and 16

Trends in groups 15 and 16 36

Nitrogen compounds: ammonia, oxides of nitrogen, nitric acid 36

Phosphorus allotropes, phosphine, halides and oxyacids of phosphorus 37

Oxygen, ozone and oxides 36

Sulphur allotropes, SO2, sulphuric acid, oxyacids of sulphur 37

Structures of oxyacids and oxides 38