100 mL of HCl + 35 mL of NaOH, colour of methyl orange in the solution will be

Question

100 mL of HCl + 35 mL of NaOH, colour of methyl orange in the solution will be (A) red (B) yellow (C) can't be predicted (D) methyl orange is not a suitable indicator

Tardigrade Admin · Accepted Answer

When 100 mL HCl is added to 35 mL NaOH, 35 mL HCl is utilised to neutralise NaOH, while 65 mL HCl remains as such. Hence, the solution becomes acidic. In acid solution, the colour of methyl orange (indicator) is red due to presence of Me +ions as underset textmethyl orange (yellow)MeOH leftharpoons underset textredMe+ + OH-

Q. 100mL of HCl+35mL of NaOH, colour of methyl orange in the solution will be

red

yellow

can't be predicted

methyl orange is not a suitable indicator

When 100mLHCl is added to 35mLNaOH, 35mLHCl is utilised to neutralise NaOH, while 65mLHCl remains as such. Hence, the solution becomes acidic. In acid solution, the colour of methyl orange (indicator) is red due to presence of Me+ions as methyl orange (yellow)MeOH​⇌redMe+​+OH−

Q. $100 m L$ of $H Cl + 35 m L$ of $N a O H$ , colour of methyl orange in the solution will be