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Introduction to Electrophilic Substitution

Which of the ...

Question

Which of the following sets of reagents, used in the order shown, would be enable for the preparation of p-chlorophenol from p-chloronitrobenzene?

1

. Fe, HCl;

2

. NaOH;

3

N a N O_{2}, H_{2} S O_{4}

;

4

H_{3} P O_{2}

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1

. Fe, HCl;

2

. NaOH;

3

N a N O_{2}, H_{2} S O_{4}

;

4

H_{2} O

, heat

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1

. Fe, HCl;

2

. NaOH;

3

N a N O_{2}, H_{2} S O_{4}

;

4

. Ethanol

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1

. NaOH, heat;

2

. HCl

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Solution

The correct option is C $1$ . Fe, HCl; $2$ . NaOH; $3$ . $N a N O_{2}, H_{2} S O_{4}$ ; $4$ . $H_{3} P O_{2}$
The catalyst used are $F e, H C l, H_{2} S O_{4}, H_{3} P O_{2}$ .The reactants & products are p-chlorophenol & p-chloronitrophenol.It is an electrophilic aromatic substitution reaction.

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Similar questions

Q. STATEMENT-1 : Heat of neutralization of HCl and NaOH is same as that of

H_{2} S O_{4}

with NaOH.
STATEMENT-2 : HCl,

H_{2} S O_{4}

and NaOH are all strong electrolyte.

Identify the Arrhenius acids among the following:

1. NaCl 2. HCl 3. $C u (O H)_{2}$ 4. NaOH

5. $H_{2} S O_{4}$ 6. $H N O_{3}$ 7. KOH

Balance the following equations :

(i) Na + $O_{2}$ $⟶$ $N a_{2} O$

(ii) $H_{2} O_{2}$ + $⟶$ $H_{2} O + O_{2}$

(iii) $M g (O H)_{2}$ +HCl $⟶$ $M g C l_{2}$ + $H_{2} O$

(iv) Fe + $O_{2}$ $⟶$ $F e_{2} O_{3}$

(v) $A l (O H)_{3}$ $⟶$ $A l_{2} O_{3}$ + $H_{2} O$

(vi) $N H_{3}$ + CuO $⟶$ Cu + $N_{2}$ + $H_{2} O$

(vii) $A l_{2} (S O_{4})_{3}$ + NaOH $⟶$ $A l (O H)_{3}$ + $N a_{2} S O_{4}$

(viii) $H N O_{3}$ + $C a (O H)_{2}$ $⟶$ $C a (N O_{3})_{2}$ + $H_{2} O$

(ix) NaOH + $H_{2} S O_{4}$ $⟶$ $N a_{2} S O_{4}$ + $H_{2} O$

(x) $B a C l_{2}$ + $H_{2} S O_{4}$ $⟶$ $B a_{2} S O_{4}$ + $H C l$

Balance the following chemical equations. [3 MARKS]

1. ${HNO}_{3} + {Ca(OH)}_{2} \to {Ca(NO}_{3})_{2} + H_{2} O$
2. $NaOH + H_{2} {SO}_{4} \to {Na}_{2} {SO}_{4} + H_{2} O$
3. ${MnO}_{2} + HCl \to {MnCl}_{2} + {Cl}_{2} + H_{2} O$

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Which of the following sets of reagents, used in the order shown, would be enable for the preparation of p-chlorophenol from p-chloronitrobenzene?

The correct option is C 1. Fe, HCl; 2. NaOH; 3. NaNO2,H2SO4; 4. H3PO2The catalyst used are Fe,HCl,H2SO4,H3PO2.The reactants & products are p-chlorophenol & p-chloronitrophenol.It is an electrophilic aromatic substitution reaction.

The correct option is C $1$ . Fe, HCl; $2$ . NaOH; $3$ . $N a N O_{2}, H_{2} S O_{4}$ ; $4$ . $H_{3} P O_{2}$
The catalyst used are $F e, H C l, H_{2} S O_{4}, H_{3} P O_{2}$ .The reactants & products are p-chlorophenol & p-chloronitrophenol.It is an electrophilic aromatic substitution reaction.