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Batra Sahab
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Asked: 2025-02-01T06:20:46+00:00 In:

Valencies of aluminium and phosphate are

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66.67%(a) + 3 and -3 respectively. ( 2 voters )
0%(b) +2 and -3 respectively.
0%(c) + 3 and -2 respectively.
33.33%(d) + 2 and -2 respectively. ( 1 voter )
Based On 3 Votes

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(a) +3 and -3 respectively.
Aluminium (Al) has a valency of +3 because it loses three electrons to achieve stability. Phosphate (PO₄³⁻) has a valency of -3 as it gains three electrons. They combine to form AlPO₄ in a neutral compound.
Class 9th Science NCERT MCQ Questions
NCERT Books MCQ Questions Session 2024-2025.

class 9mcqsciencevalencies of aluminium
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    1. (a) Aluminium and phosphate ions are represented as Al³+ and PO₄³⁻ respectively.

      https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-3/

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