The major product of the following reaction sequence will be

$\underset{\left(1\right)}{\overset{\mathbf{PhCOCl}\mathbf{ }\mathbf{/}\mathbf{ }\mathbf{Pyridine}\mathbf{ }}{\to }} \underset{\left(2\right)}{\overset{\mathit{C}{\mathit{H}}_{\mathbf{3}}\mathit{C}\mathit{O}\mathit{C}\mathit{l}\mathit{ }\mathbf{/}\mathit{A}\mathit{l}\mathit{C}{\mathit{l}}_3}{\to }}$
$\underset{\left(3\right)}{\overset{\mathit{Z}\mathit{n}\mathbf{-}\mathit{H}\mathit{g}\mathit{ }\mathbf{/}\mathit{H}\mathit{C}\mathit{l}\mathbf{/}\mathbf{∆}}{\to }} \underset{\left(4\right)}{\overset{\mathit{B}{\mathit{r}}_{\mathbf{2}}\mathit{ }\mathbf{/}\mathit{F}e}{\to }}$

1.
2.
3.
4.

In the following reactions X, Y and Z are respectively :

	X	Y	Z
(1)
(2)
(3)
(4)

An aromatic compound A (C₈H₁₀O) gives the following tests with the given reagents.

The structure of  'A' is:

1.		2.
3.		4.

Compound Y,  C₇H₈O is insoluble in water, dil HCI and aqueous NaHCO₃. It dissolves in dilute NaOH. When Y is treated with bromine water it is converted rapidly into a compound of formula C₇H₅OBr₃.  The structure of Y is:

1.		2.
3.		4.

Compounds I and II can be distinguished by using reagent:
(I) 4–Amino–2–methylbut–3–en–2–ol 
(II) 4–Amino–2,2–dimethylbut–3–yn–1–ol

1. NaNO₂/HCl

2. Br₂/H₂O

3. HCl/ZnCl₂ (anhydrous)

4. Cu₂Cl₂ + NH₄OH

$\underset{{\mathrm{CH}}_2{\mathrm{Cl}}_2}{\overset{{\mathrm{Br}}_2}{\to }}$ W. Product W is:

1. 

2. 

3. 

4. 

What is the correct order of dehydration rate for the compounds (i), (ii), and (iii) when treated with concentrated \(\text{H}_2\text{SO}_4\)?

(i)
(ii)
(iii)

1. (i) > (iii) > (ii)                                             

2. (i) > (ii) > (iii)

3. (ii) > (i) > (iii)                                             

4. (ii) > (iii) > (i)

Product (x) will be:

(a) 

(b) 

(c) 

(d) 

In each of the following groups, which is the strongest (best) nucleophile ?

(I)(1)H₃C-O^-            (2)                   (3)H₃C-S^- in CH₃OH

(II)(1)OH^-                (2) H₂O                        (3) ${\mathrm{NH}}_2^{-}$ in DMF

(III) (1)   (2)                  (3) CH₃O^- in DMSO

(a) I,3; II,3; III,2                                  (b) I,2; II,1; III,3

(c)  I,1; II,2; III,1                                 (d) I,3; II,1; III,3

(A) on heating isomerizes to (B). What is the structure of (B) ?