Chemistry Q52 – NEET-UG 2025

Home Chemistry Periodicity & ElementsQuestion #516

Given below are two statements : Statement I : Like nitrogen that can form ammonia, arsenic can form arsine. Statement II : Antimony cannot form antimony pentoxide. In the light of the above statements, choose the most appropriate answer from the options given below :

Clue 1 of 3: Group 15 Elements

Recall the general chemical properties and common compounds formed by elements in Group 15 of the periodic table, such as nitrogen, phosphorus, arsenic, and antimony.

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● Video Walkthrough

Step 1: Evaluate Statement I✦ Active

Statement I says: "Like nitrogen that can form ammonia, arsenic can form arsine." Nitrogen (N) is a Group 15 element and forms ammonia ( $N H_{3}$ ). Arsenic (As) is also a Group 15 element and forms arsine ( $A s H_{3}$ ). Both are hydrides of Group 15 elements. Therefore, Statement I is correct.

Step 2: Evaluate Statement II○ Expand

Statement II says: "Antimony cannot form antimony pentoxide." Antimony (Sb) is a Group 15 element. Group 15 elements are known to form pentoxides, such as $N_{2} O_{5}$ , $P_{2} O_{5}$ , $A s_{2} O_{5}$ , and $S b_{2} O_{5}$ . Antimony pentoxide ( $S b_{2} O_{5}$ ) is a known compound. Therefore, the statement that antimony *cannot* form antimony pentoxide is incorrect.

💡 Teacher's Secret Hint

Remember that the highest oxidation state for Group 15 elements is +5, allowing for the formation of pentoxides.

Step 3: Determine the Most Appropriate Option○ Expand

Based on the evaluation, Statement I is correct, and Statement II is incorrect. This corresponds to option (3).

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Chemistry Question 52 – NEET-UG 2025

Clue 1 of 3: Group 15 Elements

🧠 Full Solution Path