Isomerism

Given : [figure] Which of the given compounds can exhibit tautomerism?

1. II and III
2. I, II and III
3. I and II
4. I and III

Which of the following compounds will undergo racemisation when solution of KOH hydrolyses? [figure]

1. (i) and (ii)
2. (ii) and (iv)
3. (iv)
4. (i) and (iv)

The order of stability of the following tautomeric compounds is [figure]

1. II > I > III
2. II > III > I
3. I > II > III
4. III > II > I

Given: [figure] I and II are

1. identical
2. a pair of conformers
3. a pair of geometrical isomers
4. a pair of optical isomers

Number of isomeric alcohols of molecular formula C6H14O which give positive iodoform test is

1. three
2. four
3. five
4. two

Which of the following acids does not exhibit optical isomerism?

1. Maleic acid
2. -amino acids
3. Lactic acid
4. Tartaric acid

The IUPAC name of the following compound is [figure]

1. trans-2-chloro-3-iodo-2-pentene
2. cis-3-iodo-4-chloro-3-pentene
3. trans-3-iodo-4-chloro-3-pentene
4. cis-2-chloro-3-iodo-2-pentene

Which of the following conformers for ethylene glycol is most stable?

1. [figure]
2. [figure]
3. [figure]
4. [figure]

In the following the most stable conformation of n-butane is

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Which of the following compounds will exhibit cis-trans (geometrical) isomerism?

1. Butanol
2. 2-Butyne
3. 2-Butanol
4. 2-Butene