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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: A colloid gets coagulated by addition of an electrolytes.
STATEMENT-2: Coagulation depends on the valance and sign of the charge of the coagulant ion.

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 will analyze both statements and determine their validity and relationship. ### Step-by-Step Solution: 1. **Understanding Statement 1**: - **Statement 1**: "A colloid gets coagulated by the addition of an electrolyte." - **Analysis**: This statement is true. Coagulation of colloids occurs when electrolytes are added. The ions from the electrolyte neutralize the charge on the colloidal particles, leading to their aggregation and subsequent settling. 2. **Understanding Statement 2**: - **Statement 2**: "Coagulation depends on the valence and sign of the charge of the coagulant ion." - **Analysis**: This statement is also true. The effectiveness of coagulation is influenced by the valence (charge) of the ions in the electrolyte. Higher valence ions can neutralize the charge on colloidal particles more effectively than lower valence ions. Additionally, the sign of the charge is crucial; the coagulant ions must have an opposite charge to that of the colloidal particles for coagulation to occur. 3. **Relationship Between the Statements**: - While both statements are true, Statement 2 does not explain Statement 1. Statement 1 simply states that coagulation occurs with the addition of electrolytes, while Statement 2 elaborates on the factors affecting coagulation (valence and charge). However, it does not provide a direct explanation for why electrolytes cause coagulation. 4. **Conclusion**: - Both statements are true, but Statement 2 is not a correct explanation of Statement 1. Therefore, the correct answer is that both statements are true, but Statement 2 does not explain Statement 1. ### Final Answer: Both Statement 1 and Statement 2 are true, but Statement 2 is not the correct explanation of Statement 1. ---
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