Colloidal particles always carry an electric …

Colloidal particles always carry an electric charge. The nature of this charge is the same on all the particles in a given colloidal solution and may be either positive or negative. The charge on the sol particles is due to one or more reasons, viz., due to electron capture by sol particles during electrodispersion of metals. When two or more ions are present in the dispersion medium, preferential adsorption of the ion common to the colloidal particle usually takes place. When silver nitrate solution is added to the potassium iodide solution, the precipitated silver iodide adsorbs iodide ions from the dispersion medium, and negatively charged colloidal solution results. acquired a positive or a negative charge by selective adsorption on the surface of a colloidal particle The combination of the two layers of opposite charges around the colloidal particle is called Helmholtz electrical double layer. The presence of equal and similar charges on colloidal particles is largely responsible for providing stability to the colloidal solution. In these questions, a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.  Assertion and reason both are correct statements and reason is correct explanation for assertion Assertion and reason both are correct statements but reason is not correct explanation for assertion Assertion is correct statement and reason is wrong statement Assertion is wrong statement but reason is correct statement Assertion: The presence of equal and similar charges on colloidal particles is largely responsible in providing stability to the colloidal solution. Reason: The repulsive forces between charged particles having the same charge prevent them from aggregating and provide stability. Assertion: The first layer is mobile in Helmholtz electrical double layer. Reason: The potential difference between the fixed layer and the diffused layer of opposite charges is called zeta potential. Assertion: The sol particle in colloid has a charge. Reason: The charge in sol is due to electron capture by sol particles during the electrodispersion of metals. Assertion: Methylene blue sol is a negatively charged sol. Reason: When KI solution is added to AgNO3 solution, positively charged sol formed. Assertion: If FeCl3 is added to an excess of hot water, a positively charged sol of hydrated ferric oxide is formed. Reason: When ferric chloride is added to NaOH a negatively charged sol is obtained with adsorption of OH- ions.

Give reason. Boiling point of ethyl bromide 3higher than that of ethyl chloride?

2N205-4no2 +0² If a concentration of increase by 1.6×10²m Calculate rate of formation of NO2 Rate of formation of O2

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If benzoic acid and equals to 122 gram mole is associated into a timer when dissolved in Benzene and the osmetic pressure of a solution of 6.1 gram of benzoic acid in 100 ml benzene is a 6.5 ATM at 27 degree Celsius then what is the percentage Association of benzoic acid

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Identifying the Presence of Starch in an Organic Compounds maximum