Advertisements
Advertisements
प्रश्न
Why does bleeding stop by rubbing moist alum?
Advertisements
उत्तर
Blood is a colloidal solution when we rub moist alum on that part it causes coagulation which stops bleeding.
APPEARS IN
संबंधित प्रश्न
Define the following with a suitable example, of each:
Gel
Choose the correct option.
The size of colloidal particles lies between ______.
Draw labelled diagram Tyndall effect.
Draw labelled diagram Dialysis.
Draw labelled diagram of Bredig’s arc method.
Identify the CORRECT statement.
Froth is a colloidal solution of ____________.
Tyndall effect is useful ______.
The movement of colloidal particles towards respective electrode under electric field is called ______.
Which of the following compounds forms a colloidal solution when dissolved in water?
Which of the following ionic species has highest precipitating power?
Freshly prepared precipitate sometimes gets converted to colloidal solution by ______.
An emulsion cannot be broken by:
(i) heating
(ii) adding more amount of dispersion medium
(iii) freezing
(iv) adding emulsifying agent
How does the precipitation of colloidal smoke take place in Cottrell precipitator?
Toluene is oxidised to benzoic acid by
The coagulation of 200 ML of position sol took place when 0.73 HCL was added to its without changing the volume much. The flocculation value of HCL for the colloid is.
Which of the following is most powerful to coagulate the negative colloid?
Blood may be purified by ______.
Identify positively charged sol from following.
Identify the correct decreasing order of precipitation power of flocculating ion added, from following.
