Chemistry - Complete Pblock- Question with Solution | TestHub
ChemistryComplete Pblock-p-Block 17,18Medium2 minQB
ChemistryMediuminteger
Choose the total number of correct reactions :
(i) CuSO₄ solution + excess NH₃ → deep blue complex
(ii) CuSO₄ solution + PH₃ → Cu₃P₂
(iii) NH₃(excess) + Cl₂ → NH₄Cl + N₂
(iv) NH₃ + Br₂(excess) → NBr₃ + HBr
(v) XeF₄ + SbF₅ → [XeF₃]⁺[SbF₆]⁻
(vi) I₂ + Na₂S₂O₃ → Na₂S₄O₆ + NaI
(vii) PCl₅ + limited H₂O → H₃PO₄
(viii) BCl₃ + H₂O → H₃BO₃
Answer:
7
Solution:
(vii) is wrong: PCl₅ + H₂O(limited) → POCl₃ + 2HCl (H₃PO₄ needs excess water). The other seven reactions are correct as written (after balancing).
Stream:JEESubject:ChemistryTopic:Complete Pblock-Subtopic:p-Block 17,18
⏱ 2mℹ️ Source: QB
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