Chemical Reactions

+I effect decreases the acidic character of carboxylic acid and -I effect increases the acidic character. Since the electronegativity order of 'C' attached to carboxylic acid is , hence the order is I > II > III > IV.

Read more from the chapter: Carboxylic Acids

1. (Compound I):

The formation of hydrogen peroxide ( ) happens by the reaction between and .
This corresponds to reaction Q.

2. (Compound II):

The formation of magnesium hydroxide ( ) occurs when reacts with .
This corresponds to reaction R.

3. (Compound III):

Barium chloride ( ) reacts with hydrochloric acid to form barium peroxide ( ), which corresponds to reaction S.

4. (Compound IV):

Calcium carbonate ( ) is formed when reacts with , corresponding to reaction P.

Final Answer:

The correct matches are:

• I → Q: formation
• II → R: formation
• III → S: formation
• IV → P: formation

Correct Option:

The correct option is A: I → Q; II → R; III → S; IV → P.

1. Asymmetric Carbon Definition:

An asymmetric carbon (or chiral center) is a carbon atom that is bonded to four different atoms or groups. If a carbon atom is bonded to four different groups, it is considered a chiral center and leads to chirality, meaning the molecule is non-superimposable on its mirror image.

2. Identify Asymmetric Carbons:

a. Product P:

To determine if product P contains asymmetric carbons, analyze its structure. Look for any carbon atoms that are connected to four different groups. If such a carbon is found, product P will contain an asymmetric carbon.

b. Product Q:

Similarly, for product Q, inspect the structure to identify any carbon atom that is bonded to four distinct groups. If such a carbon exists, then Q will have an asymmetric carbon.

c. Product R:

In product R, analyze the structure to locate any carbon attached to four different groups. If found, R will have an asymmetric carbon.

d. Product S:

Study product S and check whether any carbon atom is connected to four different groups. If no such carbon exists, product S will not have an asymmetric carbon.

3. Evaluation from Given Options:

a. Option 1: Both P and Q have asymmetric carbon(s):

To verify this option, check both product P and product Q. If both have at least one asymmetric carbon, then this option is correct.

b. Option 2: Both Q and R have asymmetric carbon(s):

Similarly, evaluate both products Q and R. If both have asymmetric carbons, this option is correct.

c. Option 3: Both P and R have asymmetric carbon(s):

Check both P and R. If both have at least one asymmetric carbon, then this option is valid.

d. Option 4: P has asymmetric carbon(s), S does not:

Finally, verify if product P contains asymmetric carbon(s), while product S does not. If this is true, then this option is correct.

4. Conclusion:

Based on the structural analysis of the products:

Both P and R have at least one asymmetric carbon, making Option 3 correct.

P has asymmetric carbon(s), while S does not have any asymmetric carbon, making Option 4 valid.

Final Answer:

Option 3: Both P and R have asymmetric carbon(s).

Option 4: P has asymmetric carbon(s), and S does not have any asymmetric carbon.

This analysis confirms the correct statements based on the structural analysis of the chemical products P, Q, R, and S.

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