Maleic and fumaric acids are:
1. tautomers 2. geometrical isomers
3. chain isomers 4. functional isomers
The optically active alkane with lowest molar mass is:
1.
2.
3.
4.
a-D-(+)-glucose and β-D-(+)-glucose are :
(a) enantiomers
(b) conformers
(c) epimers
(d) anomers
The IUPAC name of the compound
is....
1. 3-keto-2-methylhex-4-enal
2. 5-formylhex-2-en-3-one
3. 5-methyl-4-oxohex-2-en-5-al
4. 3-keto-2-methylhex-5-enal
The correct order of strengths of the carboxylic acids :-
(a) I>II>III
(b) II>III>I
(c) III>II>I
(d) lI>I>IlI
Given,
Which of the given compounds can exhibit tautomerism?
(1) I and II
(2) I and III
(3) II and III
(4) I, II and III
Which of the following statements is not correct for a nucleophile?
(1) Nucleophile is a Lewis acid
(2) Ammonia is a nucleophile
(3) Nucleophiles attack low electrons density sites
(4) Nucleophiles are not electron seeking
Which one is most reactive towards nucleophilic addition reaction?
1. 2.
3. 4.
The radical is aromatic because it has:
1. 6 p-orbitals and 6 unpaired electrons
2. 7 p-orbitals and 6 unpaired electrons
3. 7 p-orbitals and 7 unpaired electrons
4. 6 p-orbitals and 7 unpaired electrons
Which of the following does not exhibit optical isomerism?
(1) Maleic acid
(2) α-amino acids
(3) Lactic acid
(4) Tartaric acid