MCQ
Which one is incorrect statement
  • A
    Fluorine always shows $-1$  oxidation state in combined state
  • Hydrogen always shows $+1$  oxidation state in combined state.
  • C
    Sodium always shows  $+1$ oxidation state in combined state.
  • D
    Calcium always shows $+2$ oxidation state in combined state.

Answer

Correct option: B.
Hydrogen always shows $+1$  oxidation state in combined state.
b

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free