Which of the following compound will give white precipitate on heating with HNO3 followed by addition of silver nitrate?

C2H53N+HCl- is an ionic compound, so it will form precipitate of AgCl on adding AgNO3.  In 2,4,6-Trinitrochlorobenzene, -Cl is activated HNO3 due to the presence of three -NO2 groups in o- and p-positions, so it will be very reactive leading to formation of AgCl on adding HNO3 and AgNO2.