Match the items of Column I with items of Column II and assign the correct code-A- Blisterred - Cu-1- AluminiumllB- Blast furnace-2- 2Cu2O-Cu2S6 Cu - SO - 2 C- Reverberatory furnace-3- IronllD- Hall-Heroult process-4- FeO-SiO2-ongrightarrow FeSiO3-5- 2 Cu2S-3O22Cu2O-2SO2 1 Whline e n d array Codes- A B C D- a 2 3 4 1- c 5 4 3 2 - b A B C D- d 1 2 3 5- d 4 5 3 2 -

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Standard XII

Chemistry

Extraction of Copper

Match the ite...

Question

Match the items of Column I with items of Column II and assign the correct code.
$\begin{matrix} C o l u m n I & C o l u m n I I A . B l i s t e r r e d C u & 1. A l u m i n i u m B . B l a s t f u r n a c e & 2. 2 C u_{2} O + C u_{2} S ⟶ 6 C u + S O_{2} C . R e v e r b e r a t o r y f u r n a c e & 3. I r o n D . H a l l - H e r o u l t p r o c e s s & 4. F e O + S i O_{2} ⟶ F e S i O_{3} 5. 2 C u_{2} S + 3 O_{2} ⟶ 2 C u_{2} O + 2 S O_{2} \end{matrix}$
Codes
A B C D A B C D
(a) 2 3 4 1 (b) 1 2 3 5
(c) 5 4 3 2 (d) 4 5 3 2

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Solution

(a) $A . \to (2)$ $B . \to (3)$ $C . \to (4)$ $D . \to (1)$
A. Blisterred Cu can be prepared by means of following chemical reaction
$2 C u_{2} O + C u_{S} ⟶ 6 C u + S O_{2}$
B. Iron is extracted by using blast furnance.
C.In reverberatory furnance formation of slag occurs as
$F e O + S i O_{2} ⟶ F e S i O_{3} S l a g$
D. Hall-Heroult process is used for extraction of aluminium.

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Similar questions

Match the items of Column I with the items of Column II and assign the correct code.
$\begin{matrix} C o l u m n I & C o l u m n I I A . S a p p h i r e & 1. A l_{2} O_{3} B . S p h a l e r i t e & 2. N a C N C . D e p r e s s a n t & 3. C o D . C o r u n d u m & 4. Z n S 5. F e_{2} O_{3} \end{matrix}$
Codes
A B C D A B C D
(a) 3 4 2 1 (b) 5 4 3 2
(c) 2 3 4 5 (d) 1 2 3 4

Match the items of Column I with the items of Column II and assign the correct code.
$\begin{matrix} C o l u m n I & C o l u m n I I A . C o l o u r e d b a n d s & 1. Z o n e r e f i n i n g B . I m p u r e m e t a l t o v o l a t i l e c o m p l e x & 2. F r a c t i o n a l d i s t i l l a t i o n C . P u r i f i c a t i o n o f G e a n d S i & 3. M o n d^{'} s p r o c e s s D . P u r i f i c a t i o n o f m e r c u r y & 4. C h r o m a t o g r a p h y 5. L i q u a t i o n \end{matrix}$
Codes
A B C D A B C D
(a) 1 2 4 5 (b) 4 3 1 2
(c) 3 4 2 1 (d) 5 4 3 2

Q. Some of the reactions taking place during bessemerisation possibly are -

A : F e O + S i O_{2} \to F e S i O_{3}

B : 2 F e S + 3 O_{2} \to 2 F e O + 2 S O_{2}

C : 2 C u_{2} S + 3 O_{2} \to 2 C u_{2} O + 2 S O_{2}

D : 2 C u_{2} O + C u_{2} S \to 6 C u + S O_{2}

Select reactions actually taking place :

Q. Match List-I with List-II and select the correct answer using the given below the lists:

List-I A. Pig iron B. Cast iron C. Wrought iron D. Steel

List-II 1. L.D. process 2. Reverberatory furnace 3. Cupola furnace 4. Electric reduction furnace Codes:

Match the items in Column 1 with items in Column 2.

$\begin{matrix} Column 1 & Column 2 i) Calcium & a) Digestion of food ii) Magnesium & b) Thyroid gland iii) Iodine & c) Growth of bones \end{matrix}$

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