AP EAMCET202315 May 2023Evening ShiftChemistryd and f Block ElementsActual
Identify the correctly matched pairs i. TiO - pigment industry ii. MnO ₂ - dry battery cells iii. Cu / Ni alloy - UK 'copper' coins
Options
- Ai, ii, iii
- Bii, iii only
- Ci, ii only
- Di, iii only
Correct answer
C. i, ii only
Step-by-step solution
TiO is a white pigment used in coating industries. MnO ₂ is used in dry battery cells as it possesses good energy. The traditional UK copper coins are mainly made of Cu , Zn and Sn . Thus, Statement (iii) is incorrect.