Which one of the following acts as a physiological barrier to the entry of microorganisms in human body?
Which one of the following acts as primary as well as secondary consumer in the forest ecosystem?
Which one of the following acts as an emulsifier in lipid metabolism ?
When 1.0 xx 10^(-5) mg of a protective colloid is added to 20 ml of standard gold sol, the precipitation of gold sol was prevented by adding 5 ml of 10% solution of NaCl. If the gold number of protective colloid is 2.0 x 10^(-x) mg then x is = __?
Which of the following may form associate colloids?
Which of the following may form associate colloids?
One gram of a protective colloid 'X' is to be added to 200ml of gold sol to prevent coagulation of it when 20 ml of 10% NaCl is added. Calculate the gold number of protective colloid 'X'.
Which one of the following id most effective in causing the coaglation of an As_2S_3sol ?
NARENDRA AWASTHI-SURFACE CHEMISTRY-Level 3 - Assertion - Reason Type Questions