How can an incense stick or incense cone able to glow as well as burn with a flame?
What is presnt in incense sticks or incense cones that when they glow they give out fragrance, while when they burn with a flame, they don' t give out a fragrance?

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Solution

$I n c e n s e s t i c k o r i n c e n s e c o n e i s a r o m a t i c b i o t i c m a t e r i a l a n d t h e y r e l e a s e s f r a g r a n t s m o k e a n d t h e y l e a v e a g l o w i n g e m b e r w h i c h s m o u l d e r s . T h e r e l e a s e o f f r a g r a n c e c o n t i n u e s, a s t h e a r o m a i s s t i c k o r p a s t e d i n t h e f u l l a r t i c l e . D u r i n g b u r n i n g a s t h e s u b s \tan c e p r e s e n t i s a r o m a t i c, i t b u r n s w i t h a s u i t y f l a m e p r o d u c i n g c a r b o n d i o x i d e .$

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Similar questions

Spreading of fragrance of a burning incense stick in a room shows that:

Assertion:- When incense stick is lit then its fragrance spreads quickly in the room because of diffusion.

Reason:- Diffusion decreases on raising the temperature.

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