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Most Important Selected Qs for JEE AdvancedChemistryHydrogen

A white crystalline solid (A) on boiling with caustic soda solution gave a gas (B), which when passed through an alkaline solution of potassium mercuric iodide gave brown ppt. The substance (A) on heating gave a gas ( X ) , which rekindled a glowing splinter but did not give brown fumes with nitric oxide. The gas (B) is

Options

  1. AH ₂ ~S
  2. BNH ₃
  3. CHCL
  4. DCO ₂

Correct answer

A. H ₂ ~S

Step-by-step solution

( (A) NH ₄ Cl + NaOH NaCl + (B) NH ₃ + H ₂ O )

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