Chemistry - Complete s-block Question with Solution | TestHub
List - I (Reactant | List - II (Product) |
|---|---|
(P) | (1) |
(Q) | (2) |
(R) | (3) |
(S) | (4) |
Match list-I and list-II and give your answer as abc where a,b and c are the match of 1, 2, 3 from list-II.“(for example Matching of P is = 2, Q = 3 & R = 1 then your answer is 231)
Options:
Answer:
Solution:
(P) Heating potassium nitrate with metallic potassium reduces it to form potassium oxide (K₂O), which matches with (2).
(Q) Sodium peroxide absorbs carbon monoxide gas to yield sodium carbonate (Na₂CO₃), which matches with (1).
(R) Reaction of sodium peroxide with ice-cold water () produces hydrogen peroxide (H₂O₂), which matches with (4).
(S) Hydrolysis of beryllium carbide (Be₂C) releases methane gas (CH₄), which matches with (3).
Therefore, the correct combined matching integer sequence is 2143.
