MCQ
निम्नलिखित में कौन अम्ल है?
  • A
    $\mathrm{CaO}$
  • B
    $\mathrm{KOH}$
  • C
    $\mathrm{NaCl}$
  • $\mathrm{HCl}$

Answer

Correct option: D.
$\mathrm{HCl}$
d

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