The total number of acidic oxides from the following list is: NO,\ N2O,\ B2O3,\ N2O5,\ CO,\ SO3,\ P4O10
p-Block Elements (Class 12) · Class 12 · JEE Main Previous Year Question
The total number of acidic oxides from the following list is:
- a
5
- b✓
4
- c
3
- d
6
4
Strategy: Relate the electronic configuration of noble gases to their ionization enthalpy and reactivity.
Step 1: Periodic Trends Noble gases have very high ionization enthalpies due to their stable closed-shell configurations. Ionization enthalpy decreases down the group as atomic size increases.
Step 2: Conclusion Matching the trend or identifying the specific compound (e.g., Bartlett's first compound ) provides the correct response.
Practice this question with progress tracking
Want timed practice with adaptive difficulty? Solve this question (and hundreds more from p-Block Elements (Class 12)) inside The Crucible, our adaptive practice platform.
More JEE Main p-Block Elements (Class 12) PYQs
The group 14 elements A and B have the first ionisation enthalpy values of 708 and 715 kJ mol-1 respectively. The above values are lowest among their group members. The nature of their ions A2+ and…
Given below are the oxides: Na2O,\ As2O3,\ N2O,\ NO and Cl2O7 Number of amphoteric oxides is:
Consider the following elements In, Tl, Al, Pb, Sn and Ge. The most stable oxidation states of elements with highest and lowest first ionisation enthalpies, respectively, are:
When a salt is treated with sodium hydroxide solution it gives gas X. On passing gas X through reagent Y a brown coloured precipitate is formed. X and Y respectively, are
The amphoteric oxide among V2O3, V2O4 and V2O5 upon reaction with alkali leads to formation of an oxide anion. The oxidation state of V in the oxide anion is: (a) +3 (b) +7 (c) +5 (d) +4