What is the IUPAC name of $C H_{3} C H = C H - C O O H$ ?

2-Butenoic acid

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Crotonic acid

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2-Butanoic acid

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3-Butenoic acid

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Solution

The correct option is C 2-Butenoic acid
$4 C H_{3} 3 C H =^{2} C H -^{1} C O O H$
$B u t - 2 - e n e - 1 - o i c a c i d$

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The IUPAC name of CH₃CH₂CH₂COOH is:

Q. Assertion :Nomenclature of

C H_{3} - C (C O O C_{2} H_{5}) = C H - C O O H

is 3-carbethoxy-2-butenoic acid. Reason: Principal function group gets lowest number followed by double bond or triple bond.

Q. IUPAC name of

C H_{3} C H (O H) C H_{2} C H_{2} C O O H

(a) Match the formulae in group A with appropriate names from group B:
Group A: CH₃COOH, CH₃CHO, CH₃OH
Group B: Ethanol, Methanol, Ethanal, Ethanoic acid
(b) Draw the structure of butanoic acid.
(c) What is the IUPAC name of acetic acid?

Q. The IUPAC name for the following is:

C H_{3} C H = C H - C H_{2} - C H (N H_{2}) - C H_{2} - C O O H

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What is the IUPAC name of CH3CH=CH−COOH?

The correct option is C 2-Butenoic acid4CH33CH=2CH−1COOHBut−2−ene−1−oicacid

What is the IUPAC name of $C H_{3} C H = C H - C O O H$ ?

The correct option is C 2-Butenoic acid
$4 C H_{3} 3 C H =^{2} C H -^{1} C O O H$
$B u t - 2 - e n e - 1 - o i c a c i d$