1) Which of the following compounds is formed . when a mixture of K2Cr2O7 and NaCl is heated with conc. H2SO4 ? A) $CrO_{2}Cl_{2}$ B) $CrCl_{3}$ C) $Cr_{2}(SO_{4})_{3}$ D) $Na_{2}CrO_{4}$ Answer: Option AExplanation:$K_{2}Cr_{2}O_{7}+4NaCl+6H_{2}SO_{4}\xrightarrow{Heat}2CrO_{2}Cl_{2}+6NaHSO_{4}+3H_{2}O$
