Which of the following chemical reactions depicts the oxidizing behaviour of $H_{2} S O_{4}$ ?
$2 P C l_{5} + H_{2} S O_{4} \to 2 P O C l_{3} + 2 H C l + S O_{2} C l_{2}$
$2 H I + H_{2} S O_{4} \to I_{2} + S O_{2} + 2 H_{2} O$
$C a (O H)_{2} + H_{2} S O_{4} \to C a S O_{4} + 2 H_{2} O$
$N a C l + H_{2} S O_{4} \to N a H S O_{4} + H C l$

Question

Which of the following chemical reactions depicts the oxidizing behaviour of $H_{2} S O_{4}$ ?
$2 P C l_{5} + H_{2} S O_{4} \to 2 P O C l_{3} + 2 H C l + S O_{2} C l_{2}$
$2 H I + H_{2} S O_{4} \to I_{2} + S O_{2} + 2 H_{2} O$
$C a (O H)_{2} + H_{2} S O_{4} \to C a S O_{4} + 2 H_{2} O$
$N a C l + H_{2} S O_{4} \to N a H S O_{4} + H C l$

Toppr Admin · Accepted Answer

SolutionIn reaction B Oxidation of I changes from -1 to 0-xA0- and oxidation of S reduces from -4 to -2-Therefore I get oxidised and S get reducedIn A C D reactions oxidation of S is not reducingThe correct answer is B

Which of the following chemical reactions depicts the oxidizing behaviour of H2SO4?2PCl5+H2SO4→2POCl3+2HCl+SO2Cl22HI+H2SO4→I2+SO2+2H2OCa(OH)2+H2SO4→CaSO4+2H2ONaCl+H2SO4→NaHSO4+HCl

SolutionIn reaction B Oxidation of I changes from -1 to 0 and oxidation of S reduces from +4 to +2.Therefore I get oxidised and S get reducedIn A C D reactions oxidation of S is not reducingThe correct answer is B

Solution
In reaction B Oxidation of I changes from -1 to 0 and oxidation of S reduces from +4 to +2.
Therefore I get oxidised and S get reduced
In A C D reactions oxidation of S is not reducing
The correct answer is B