Given the image and the previous explanation, the correct answer is:
Understanding the Reaction:
The reaction of propyl magnesium bromide (C3H7MgBr) with CO2 followed by acid hydrolysis is a standard Grignard reaction that produces a carboxylic acid. In this case, it forms butanoic acid.
Analyzing the Options:
The product butanoic acid has the structural formula CH3CH2CH2COOH, which can also be written as C3H7COOH.
Conclusion:
Among the given options, option (A) C3H7COOH correctly represents the product of this reaction.
Final Answer:
The correct answer is (A) C3H7COOH.
(i) Explain Aldol condensation with example.
(ii) How are the following conversions achieved:
(a) Benzene Benzaldehyde, (b) Ethanoic acid ethanol.
A racing track is built around an elliptical ground whose equation is given by \[ 9x^2 + 16y^2 = 144 \] The width of the track is \(3\) m as shown. Based on the given information answer the following: 
(i) Express \(y\) as a function of \(x\) from the given equation of ellipse.
(ii) Integrate the function obtained in (i) with respect to \(x\).
(iii)(a) Find the area of the region enclosed within the elliptical ground excluding the track using integration.
OR
(iii)(b) Write the coordinates of the points \(P\) and \(Q\) where the outer edge of the track cuts \(x\)-axis and \(y\)-axis in first quadrant and find the area of triangle formed by points \(P,O,Q\).