MCQ
निम्नांकित में कौन एक अम्ल है?
  • A
    $\mathrm{CaO}$
  • B
    $\mathrm{KOH}$
  • HCI
  • D
    $\mathrm{Na}_{2} \mathrm{O}$

Answer

Correct option: C.
HCI
c

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