Multiple choice The mixture of RDX, TNT and aluminium powder is DBX Tropex Cordite(MD) Cordite (1) and (2) both are correct Reveal answer Fill a bubble to check yourself B Correct answer Explanation This option is wrong because these are the secondary explosives. 50% more powerful than TNT by mass, torpex comprises of 42% RDX, 40% TNT, and 18% powdered aluminium.