Reactions of elemental as with hot and conc. HNO₃, and H₂SO₄ respectively, give · ABC26IN0192
Subject: Inorganic Chemistry · Chapter: Main Group Elements · Topic: Main Group Elements – General · Exam: CSIR NET 2014 · Marks: 2 · Difficulty: Easy
Reactions of elemental as with hot and conc. $\mathrm{HNO_3}$, and $\mathrm{H_2SO_4}$ respectively, give
(a)$\mathrm{As_4O_6}$ and $\mathrm{As_2(SO_4)_3}$
(b)$\mathrm{As(NO_3)_5}$ and $\mathrm{As_2(SO)_3}$
(c)$\mathrm{As_4O_6}$ and $\mathrm{H_3AsO_4}$
(d)$\mathrm{H_3AsO_4}$ and $\mathrm{As_4O_6}$
Answer
Answer: D ✓ checked by 4AB · confidence high
Explanation
Hot concentrated HNO₃ oxidises As to arsenic acid H₃AsO₄; hot concentrated H₂SO₄ gives only As(III), As₄O₆ (d).
Study loop for Main Group Elements
· Browse this chapter in the app