2025 · Q104
Match List-I with List-II and select the answer using the code given below the Lists :
List I (Reaction):
- ACH₄ + 2O₂ → CO₂ + 2H₂O + heat and light;
- BMg + H₂SO₄ → MgSO₄ + H₂;
- C2NaOH + H₂SO₄ → Na₂SO₄ + 2H₂O;
- DNaCl + AgNO₃ → NaNO₃ + AgCl.
List II (Type of Reaction):
- 1Combustion;
- 2Double displacement;
- 3Displacement;
- 4Neutralization. Code :
general-sciencechemistry
- AA B C D 1 3 4 2
- BA B C D 1 4 3 2
- CA B C D 2 3 4 1
- DA B C D 2 4 3 1
Explanation
Burning methane in oxygen is a combustion reaction (A-1); magnesium displacing hydrogen from sulphuric acid is a displacement reaction (B-3); sodium hydroxide neutralising sulphuric acid is a neutralisation reaction (C-4); sodium chloride and silver nitrate exchanging ions is a double displacement reaction (D-2). Hence the code is A-1, B-3, C-4, D-2.