When we dip a burnt matchstick or the last portion of an incense stick in mustard oil and then if we suspend it to flame a different sound comes but if we dip the same in any other oil and do so the the sound doesn't come. Why is this so? Share with your friends Share 0 Ayush Dam answered this weird question but i will follow it -3 View Full Answer Anshi Mishra answered this scsscs -2 Ayush Dam answered this because mustard oil helps burn any substance sharply. 0