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Trends in groups 15 and 16

36 questions on Trends in groups 15 and 16 from the p-Block Elements: Groups 15 and 16 chapter: 8 NEET level, 14 JEE Main, 14 JEE Advanced. Each one opens with its answer and solution.

Practice this topic All p-Block Elements: Groups 15 and 16 topics

The first ionisation enthalpy of nitrogen is higher than that of oxygen mainly because NEET level
Which of the following hydrides of group 15 is the least thermally stable? NEET level
Bismuth shows +3 as its most stable oxidation state, rather than +5, because of NEET level
Among H2O, H2S, H2Se and H2Te, the strongest acid in aqueous solution is NEET level
Oxygen exists as discrete O2 molecules, whereas sulphur exists as puckered S8 rings. The best explanation is that JEE Main level
Which of the following correctly describes the nature of the oxides N2O3, As2O3 and Bi2O3 respectively? JEE Main level
Consider the statements: (I) The electron gain enthalpy of sulphur is more negative than that of oxygen. (II) The first ionisation enthalpy of nitrogen is highe... JEE Main level
Nitrogen forms NCl3 but not NCl5, whereas phosphorus forms both PCl3 and PCl5. The reason is that JEE Main level
The correct order of boiling points of the hydrides of group 16 is JEE Main level
Which of the following statements about the elements of group 15 are correct? JEE Main level
Assertion: Nitrogen shows a maximum covalency of 4, unlike the other elements of group 15. Reason: Nitrogen has no d orbitals in its valence shell. JEE Main level
Arrange the following in increasing order of the oxidation state of nitrogen: NH3, N2H4, NH2OH, HN3 and NO2-. JEE Advanced level
In dilute nitric acid, Mn^2+ is oxidised by sodium bismuthate to MnO4-, the bismuth being reduced from Bi(V) to Bi^3+. What mass of NaBiO3 (molar mass 280 g mol... JEE Advanced level
The products of complete hydrolysis of NCl3, PCl3 and BiCl3 in water are, respectively, JEE Advanced level
Which of the following statements about the halides of group 15 elements are correct? JEE Advanced level
Assertion: The electron gain enthalpy of oxygen is less negative than that of sulphur. Reason: The compact 2p subshell of oxygen causes strong inter-electronic ... JEE Advanced level
Ozone liberates iodine from acidified potassium iodide: O3 + 2KI + H2O -> I2 + 2KOH + O2. The iodine liberated by an ozone sample required 28.0 mL of 0.0350 M N... JEE Advanced level
Which of the following statements about the hydrides H2E and the elements of group 16 are correct? JEE Advanced level
Which of the following group 16 elements is radioactive? NEET level
Which hydride has the highest boiling point among H2O, H2S, H2Se and H2Te at 1 atm? NEET level
Which oxide is the most basic among N2O3, P2O3, As2O3 and Bi2O3? NEET level
The maximum covalency shown by nitrogen is 4 because nitrogen NEET level
The correct order of thermal stability of the hydrides of group 15 is JEE Main level
On dilution with water, bismuth trichloride gives a white precipitate of JEE Main level
Which of the following does NOT exist? JEE Main level
The correct order of boiling points of the hydrides of group 16 is JEE Main level
Arrange the following in increasing order of the oxidation state of oxygen: OF2, H2O2, O2F2, KO2. JEE Main level
Among the following hydrides, the order of basic strength is JEE Main level
Which group 16 element shows the strongest tendency for catenation (E-E single bonds)? JEE Main level
Which of the following statements about group 15 is/are correct? JEE Advanced level
Select the correct statement(s) about group 16 elements and their compounds. JEE Advanced level
Which of the following statements is/are correct? JEE Advanced level
Consider the statements: I. SF6 is inert towards hydrolysis. II. SF4 is readily hydrolysed by water to SO2 and HF. III. OF6 does not exist because oxygen has no... JEE Advanced level
Assertion (A): Sodium bismuthate oxidises Mn^2+ to MnO4- in acidic medium. Reason (R): Bi(V) is less stable than Bi(III) because of the inert pair effect. Choos... JEE Advanced level
Assertion (A): The boiling point of NH3 is higher than that of PH3. Reason (R): The molar mass of NH3 is greater than that of PH3. Choose the correct option. JEE Advanced level
In acidic medium, sodium bismuthate converts manganese(II) into permanganate, itself being reduced to Bi^3+. How many moles of NaBiO3 are needed per mole of Mn^... JEE Advanced level