Most metal oxides are thermally stable at temperature up to $1000^{0} C$ but the oxide of metals below hydrogen in the electrochemical series becomes fairly easy. Thus $H g o$ and $A g_{2} O$ decompose on heating.

Which of the following compounds can not be thermally decomposed even at high temperature :

C s H C O_{3}

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R b_{2} C O_{3}

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L i_{2} C O_{3}

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(N H_{4})_{2} C O_{3}

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Solution

The correct option is B $R b_{2} C O_{3}$
As we move down the group thermal stability of carbonates increases so $R b_{2} C O_{3}$ doesnt even decompose even at high temp.

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Similar questions

Q. Metal carbonates decompose on heating to give metal oxide and carbon dioxide.Which of the metal carbonates is most stable thermally?

Q. Which of the following compound cannot be thermally decomposed even at high temperature?

Find the number of metal oxides which are decomposed on normal heating from the given oxides :

(

N a_{2} O, A l_{2} O_{3}, P b O, A g_{2} O, H g O

)

Metal carbonates decompose on heating to give metal oxide and carbon dioxide. Which of the metal Carbonates is most stable thermally?
(a) $M g C O_{3}$ (b) $C a C O_{3}$ (c) $S r C O_{3}$ (d) $B a C O_{3}$

N a_{2} C O_{3}

is thermally stable but

L i_{2} C O_{3}

and

M g C O_{3}

, both decompose on heating.
If true enter 1, else enter 0.

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Most metal oxides are thermally stable at temperature up to 10000C but the oxide of metals below hydrogen in the electrochemical series becomes fairly easy. Thus Hgo and Ag2O decompose on heating.Which of the following compounds can not be thermally decomposed even at high temperature :

The correct option is B Rb2CO3As we move down the group thermal stability of carbonates increases so Rb2CO3 doesnt even decompose even at high temp.

The correct option is B $R b_{2} C O_{3}$
As we move down the group thermal stability of carbonates increases so $R b_{2} C O_{3}$ doesnt even decompose even at high temp.