CaCo3s-AcOH-Comment on the product of this reaction-

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Byju's Answer

Standard XII

Chemistry

Introduction to E2 Mechanism

CaCo3s+AcOH?C...

Question

$C a C o_{3} (s) + A c O H N a_{2} C_{2} O_{4} s o l u t i o n - ---------- \to$ ?

Comment on the product of this reaction?

No reaction

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White ppt. of

C a {(O A c)}_{2}

is obtained

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White ppt. of

C a C_{2} O_{4}

is formed

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No ppt. is obtained but not the no reaction

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Solution

The correct option is D White ppt. of $C a C_{2} O_{4}$ is formed
Option (C) is correct.
$C a C o_{3} (s) + A c O H N a_{2} C_{2} O_{4} s o l u t i o n - ---------- \to$ $C a C_{2} O_{4} (w h i t e p p t .)$

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Similar questions

Q. White ppt. of silver gives brown ppt. on boiling, but when it is heated

(> 300^{\circ} C)

, then a metallic black ppt. is obtained. Identify the compound of silver having white ppt :

Q. (A) (colourless solution) gives white ppt (B) with NaOH solution but ppt dissolves in excess of NaOH forming (C). (C) does not give ppt with

H_{2} S

but on boiling with

N H_{4} C l

, white ppt (B) appears. (A) also gives yellow ppt with

A g N O_{3}

State True or False.

(A) is

A l B r_{3}

Q. (i)

B a C O_{3} a q . s u s p e n s i o n + N a_{2} C r O_{4} + A c O H \to M p p t

(ii)

B a C O_{3} a q . s u s p e n s i o n + N a_{2} C r O_{4} + H C N \to N p p t .

Which is the correct option regarding the given reactions?

To an aqueous solution of $A g N o_{3}$ some NaOH (aq) is added, till a brown ppt. is obtained. To this $H_{2} O_{2}$ is added dropwise. The ppt. turns black with the evolution of $O_{2}$ . The black ppt. is

Q. Question 3(i)
Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows:

\begin{matrix} M e t a l & I r o n (I I) s u l p h a t e & C o p p e r (I I) s u l p h a t e & Z i n c s u l p h a t e & S i l v e r n i t r a t e A . & N o r e a c t i o n & D i s p l a c e m e n t B . & D i s p l a c e m e n t & N o r e a c t i o n C . & N o r e a c t i o n & N o r e a c t i o n & N o r e a c t i o n & D i s p l a c e m e n t D . & N o r e a c t i o n & N o r e a c t i o n & N o r e a c t i o n & N o r e a c t i o n \end{matrix}

Use the table above to answer the following questions about metals A, B, C and D.
(i) Which is the most reactive metal?

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CaCo3(s)+AcOHNa2C2O4solution−−−−−−−−−−−→?Comment on the product of this reaction?

The correct option is D White ppt. of CaC2O4 is formedOption (C) is correct.CaCo3(s)+AcOHNa2C2O4solution−−−−−−−−−−−→ CaC2O4(whiteppt.)

$C a C o_{3} (s) + A c O H N a_{2} C_{2} O_{4} s o l u t i o n - ---------- \to$ ?

Comment on the product of this reaction?

The correct option is D White ppt. of $C a C_{2} O_{4}$ is formed
Option (C) is correct.
$C a C o_{3} (s) + A c O H N a_{2} C_{2} O_{4} s o l u t i o n - ---------- \to$ $C a C_{2} O_{4} (w h i t e p p t .)$