The following compounds have been arranged in order of their increasing thermal stabilities. Identify the correct order.
$K_{2} C O_{3} (I), M g C O_{3} (I I), C a C O_{3} (I I I), B e C O_{3} (I V)$

I < I I < I I I < I V

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I V < I I < I I I < I

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I V < I I < I < I I I

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I I < I V < I I I < I

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Solution

The correct option is B $I V < I I < I I I < I$
Thermal staiblity of salts with common anion depends on polarising power of cation. Greater the polarising power, lower be their thermal stability. Hence,
$B e C O_{3} (I V) < M g C O_{3} (I I) < C a C O_{3} (I I I) < K_{2} C O_{3} (I)$

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Similar questions

The following compounds have been arranged in order of their increasing thermal stabilities. Identify the correct order.
$K_{2} C O_{3}$ (I) $M g C O_{3}$ (II) $C a C O_{3}$
(III) $B e C O_{3}$ (IV)

Q. The following compounds have been arranged in order of their increasing thermal stabilities. Identify the correct order.

K_{2} C O_{3} (I), M g C O_{3} (I I), C a C O_{3} (I I I), B e C O_{3} (I V)

Arrange the following compounds in the increasing order of their acidic strength:

i. M – nitrophenol

ii. M – cresol

iii. Phenol

iv. M – cholorophenol

Arrange the elements with the following electronic configurations in the increasing order of electron affinity

(i) $1 s^{2} 2 s^{2} 2 p^{3}$ (ii) $1 s^{2} 2 s^{2} 2 p^{4}$ (iii) $1 s^{2} 2 s^{2} 2 p^{5}$ (iv) $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{4}$

Mark the correct order of decreasing acid strength of the following compounds.

(a) V > IV > II > I > III
(b) II > IV > I > III > V
(c) IV > V > III > II > I
(d) V > IV > III > II > I

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Hydration Enthalpy and Lattice Enthalpy (Group 2)

Standard XII Chemistry

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The following compounds have been arranged in order of their increasing thermal stabilities. Identify the correct order. K2CO3(I), MgCO3(II), CaCO3(III), BeCO3(IV)

The correct option is B IV<II<III<IThermal staiblity of salts with common anion depends on polarising power of cation. Greater the polarising power, lower be their thermal stability. Hence, BeCO3(IV)<MgCO3(II)<CaCO3(III)<K2CO3(I)

The following compounds have been arranged in order of their increasing thermal stabilities. Identify the correct order.
$K_{2} C O_{3} (I), M g C O_{3} (I I), C a C O_{3} (I I I), B e C O_{3} (I V)$

The correct option is B $I V < I I < I I I < I$
Thermal staiblity of salts with common anion depends on polarising power of cation. Greater the polarising power, lower be their thermal stability. Hence,
$B e C O_{3} (I V) < M g C O_{3} (I I) < C a C O_{3} (I I I) < K_{2} C O_{3} (I)$