MHT-CET · Chemistry

p-Block Elements (Class 12)

Group 15 to 18 — preparation, properties, anomalous behavior of first element.

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  • Q1 · p-Block Elements (Class 12) · EASY

    Ammonia (NH₃) is prepared industrially by the Haber process. Which of the following conditions is used in this process?

  • Q2 · p-Block Elements (Class 12) · MEDIUM

    Among the group 16 elements, which property shows an anomalous trend for oxygen compared to other elements in the group?

  • Q3 · p-Block Elements (Class 12) · HARD

    Concentrated HNO₃ reacts with phosphorus (P₄) to give phosphoric acid and nitrogen dioxide. If 6.2 g of phosphorus reacts completely, what volume of NO₂ gas is produced at STP? (Atomic mass: P = 31)

  • Q4 · p-Block Elements (Class 12) · MEDIUM

    Identify the correct increasing order of boiling points of the hydrides of group 15 elements.

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