Statement 1: In the titration of Na2CO3 with HCl using methyl orange indicator, the volume of acid required is twice that of the acid required using phenolphthalein as indicator. Statement 2: Two moles of HCl are required for the complete neutralisation of one mole of Na2CO3.

Question

Statement 1: In the titration of Na2CO3 with HCl using methyl orange indicator, the volume of acid required is twice that of the acid required using phenolphthalein as indicator. Statement 2: Two moles of HCl are required for the complete neutralisation of one mole of Na2CO3. (A) If both Statement 1 and Statement 2 are true and the statement 2 is the correct explanation of the statement 1 (B) If both Statement 1 and Statement 2 are true but statement 2 is not the correct explanation of the statement 1 (C) If Statement 1 is true but Statement 2 is false (D) If Statement 1 is false but Statement 2 is true

Tardigrade Admin · Accepted Answer

Na2CO3 + 2 HCl → 2Na Cl + H2O + CO2, phenolphthalein is used for Na2CO3 + 2 HCl → NaHCO3 + NaCl + CO2

If both Statement $1$ and Statement $2$ are true and the statement $2$ is the correct explanation of the statement $1$

If both Statement $1$ and Statement $2$ are true but statement $2$ is not the correct explanation of the statement $1$

If Statement $1$ is true but Statement $2$ is false

If Statement $1$ is false but Statement $2$ is true

$N a_{2} C O_{3} + 2 H Cl \to 2 N a Cl + H_{2} O + C O_{2}$ ,
phenolphthalein is used for
$N a_{2} C O_{3} + 2 H Cl \to N a H C O_{3} + N a Cl + C O_{2}$

Q. Statement 1: In the titration of Na2​CO3​ with HCl using methyl orange indicator, the volume of acid required is twice that of the acid required using phenolphthalein as indicator. Statement 2 : Two moles of HCl are required for the complete neutralisation of one mole of Na2​CO3​.

If both Statement 1 and Statement 2 are true and the statement 2 is the correct explanation of the statement 1

If both Statement 1 and Statement 2 are true but statement 2 is not the correct explanation of the statement 1

If Statement 1 is true but Statement 2 is false

If Statement 1 is false but Statement 2 is true

Na2​CO3​+2HCl→2NaCl+H2​O+CO2​, phenolphthalein is used for Na2​CO3​+2HCl→NaHCO3​+NaCl+CO2​

If both Statement $1$ and Statement $2$ are true and the statement $2$ is the correct explanation of the statement $1$

If both Statement $1$ and Statement $2$ are true but statement $2$ is not the correct explanation of the statement $1$

If Statement $1$ is true but Statement $2$ is false

If Statement $1$ is false but Statement $2$ is true

$N a_{2} C O_{3} + 2 H Cl \to 2 N a Cl + H_{2} O + C O_{2}$ ,
phenolphthalein is used for
$N a_{2} C O_{3} + 2 H Cl \to N a H C O_{3} + N a Cl + C O_{2}$