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each question constain STATEMENT-1(Asser...

each question constain STATEMENT-1(Assertion ) and STATEMENT - 2 (reason). examine the statement carefully and work the correct answer accoridng to the instructions given below :
STATEMENT-1: For coagulation of positively charged sols, `[Fe(CN)_(6)]^(4-)` ion has higher coagulating power than that of `PO_(4)^(3-),SO_(4)^(2-),Cl^(-)`
STATEMENT-2: The size of colloidal particle are larger than the size of true solution particles.

A

if both the statement are TRUE and STATEMENT -2 is the correct explanation of STATEMENT - 1

B

If both the statement are STATEMENT -2 is NOT the correct explanation of STATEMENT -1

C

If STATEMENT -1 is TRUE and STATEMENT is FALSE

D

If STATEMENT -1 is FALSE and STATEMENT -2 is TRUE

Text Solution

AI Generated Solution

The correct Answer is:
To solve the given question, we need to analyze both statements carefully. ### Step 1: Analyze Statement 1 **Statement 1**: For coagulation of positively charged sols, `[Fe(CN)_(6)]^(4-)` ion has higher coagulating power than that of `PO_(4)^(3-), SO_(4)^(2-), Cl^(-)`. - Coagulation refers to the process where colloidal particles aggregate to form larger particles, which can then settle out of the solution. - The coagulating power of an ion depends on its charge; the higher the charge, the greater the coagulating power. - In this case, `[Fe(CN)_(6)]^(4-)` has a charge of -4, while `PO_(4)^(3-)`, `SO_(4)^(2-)`, and `Cl^(-)` have charges of -3, -2, and -1 respectively. - Since -4 is the highest charge among these ions, it will have the greatest coagulating power for positively charged sols. **Conclusion for Statement 1**: This statement is **True**. ### Step 2: Analyze Statement 2 **Statement 2**: The size of colloidal particles is larger than the size of true solution particles. - True solutions consist of particles that are less than 1 nanometer in size, while colloidal particles range from 1 nanometer to 1000 nanometers. - Therefore, colloidal particles are indeed larger than the particles in a true solution. **Conclusion for Statement 2**: This statement is also **True**. ### Step 3: Determine the Relationship Between the Statements - While both statements are true, Statement 2 does not explain Statement 1. Statement 1 discusses coagulation and the coagulating power of ions, while Statement 2 merely states a fact about the sizes of particles. ### Final Answer Both statements are true, but Statement 2 is not the correct explanation for Statement 1. Therefore, the correct answer is: **Option 2**: Both statements are true, but Statement 2 is not the correct explanation of Statement 1. ---
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