Chemistry - Complete P-block Question with Solution | TestHub
ChemistryComplete P-blockp-Block 15,16Medium2 minQB
ChemistryMediuminteger
How many of the following reactions will liberate at least one oxide of nitrogen as a product?
(i) Cu + conc. HNO₃
(ii) Zn + dil. HNO₃ (20%)
(iii) Ag + dil. HNO₃
(iv) S₈ + conc. HNO₃
(v) Mg + very dil. HNO₃
(vi) Sn + dil. HNO₃ (20%)
(vii) I₂ + conc. HNO₃
(viii) Cu + dil. HNO₃ (20%)
(ix) Pb + conc. HNO₃
Answer:
7
Solution:
NO₂/NO/N₂O are evolved in (i) NO₂, (ii) N₂O, (iii) NO, (iv) NO₂, (vii) NO₂, (viii) NO, (ix) NO₂ = 7. Very dilute acid with Mg and dilute acid with Sn give NH₄NO₃ (no oxide of nitrogen).
Stream:JEESubject:ChemistryTopic:Complete P-blockSubtopic:p-Block 15,16
⏱ 2mℹ️ Source: QB
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