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 hydrides in

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 hydrides 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: (A) B and C only (B) C and D only (C) A and B only (D) A and D only

Prashant Kotian · Accepted Answer

Correct answer: C. On moving down the group, bond strength of M–H bond decreases, which reduces the thermal stability but increases reducing nature of hydrides, hence A and B are correct statements. $//(1® 5 Final JEE-Main Exam January, 2024/30-01-2024/E

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