Which of the following statements is true?

1. CH₃CH₂S^- is both a stronger base and more nucleophilic than CH₃CH₂O^-

2. CH₃CH₂S^- is a stronger base but is less nucleophilic than CH₃CH₂O^-

3. CH₃CH₂S^- is a weaker base but is more nucleophilic than CH₃CH₂O^-

4. CH₃CH₂S^- is both a weaker base and less nucleophilic than CH₃CH₂O^-

The labeled -O¹⁸ will be:


1. H₂O

2. Methyl benzoate

3. Both 1 and 2

4. Benzoic acid

Product (A) in the below mentioned reaction is:
 

1.

2.

3.

4.

Which of the following compounds is most prone to oxidation?
 

1.	\(\mathrm{CH}_3-\mathrm{CHOH}-\mathrm{CH}_3\)	2.
3.	\(\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{O}-\mathrm{CH}_2-\mathrm{CH}_3\)	4.

Which of the following react with HBr at faster rate?

$\stackrel{{\mathrm{LiAlH}}_4}{\to }$(A) Major; Product (A) is:   

(a) 

(b) 

(c) 

(d) 

$\stackrel{{\mathrm{H}}_2{\mathrm{CrO}}_4}{\to }$(A) Product (A) is:   

(a) No reaction

(b) 

(c) 

(d) 

Consider the following alcohols,

(I)  (II) 

(III) (IV) 

The order of decreasing reactivities of these alcohols towards nucleophilic substitution with HBr is:-

(a) III>I>IV>II

(b) III>I>II>IV

(c) I>III>IV>II

(d) I>III>II>IV