JEE Main 2024 Chemistry question
Choose the correct statements about the hydrides of group 15 elements. A. The stability of the hydrides decreases in the order NH₃ > PH₃ > AsH₃ > SbH₃ > BiH₃ B. The reducing ability of the hydride increases in the order NH₃ < PH₃ < AsH₃ < SbH₃ < BiH₃ C. Among the hydrides, NH₃ is strong reducing agent while BiH₃ is mild reducing agent. D. The basicity of the hydrides increases in the order NH₃ < PH₃ < AsH₃ < SbH₃ < BiH₃ Choose the most appropriate from the option given below
Answer: (B)
Solution
Down the group the E–H bond weakens, so stability decreases (A true) and reducing ability increases (B
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