Both colloids and suspensions are heterogeneous mixtures, then why are colloids more stable than suspensions?

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Solution

$D e a r S t u d e n t I n a c o l l o i d, t h e c o l l o i d a l p a r t i c l e s c a r r y s a m e c h a r g e, e i t h e r p o s i t i v e o r n e g a t i v e c h a r g e . T h i s c a u s e s t h e s a m e c h a r g e d c o l l o i d a l p a r t i c l e s r e p e l e a c h o t h e r . I t p r e v e n t s t h e m f r o m c o m i n g c l o s e r t o e a c h o t h e r t o f o r m l a r g e r p a r t i c l e s . T h i s s t o p s t h e c o a g u l a t i o n o f c o l l o i d a l s o l u t i o n a n d h e n c e p r o v i d e s s t a b i l i t y t o c o l l o i d a l s o l u t i o n . W h i l e p a r t i c l e s o f s u s p e n s i o n s a r e l a r g e r t h a n c o l l o i d a l p a r t i c l e s . H e n c e, c o l l o i d s a r e m o r e s t a b l e t h a n s u s p e n s i o n s . R e g a r d s$

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