defence exam Indian Army Nursing Assistant Mock Test Series 2025 General Science Chemistry Chemical Reaction
Which of the options represents the correct and balanced chemical equation for the reaction between a metallic oxide and an acid?
CuO + HCl → ______ + ________
1
CuO + 2HCI → CuCl2 + H2O
2
CuO + 2HCI → CuCl2 + O2
3
CuO + HCI → CuOH + HCl
4
CuO + HCI → CuCl + H2