Question:
The correct order of increasing thermal stability of $K_2CO_3, MgCO_3, CaCO_3 $ and $ BeCO_3$ is
The correct order of increasing thermal stability of $K_2CO_3, MgCO_3, CaCO_3 $ and $ BeCO_3$ is
Updated On: Jul 9, 2024
- $BeCO_3 < MgCO_3 < K_2CO_3 < CaCO_3$
- $BeCO_3 < MgCO_3 < CaCO_3 < K_2CO_3$
- $MgCO_3 < BeCO_3 < CaCO_3 < K_2CO_3 $
- $ K_2CO_3 < MgCO_3 < CaCO_3 < BeCO_3 $
Hide Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Thermal stability of carbonates increases in a group as we move from top to bottom and decreases in a period as we move from left to right, so the correct order of thermal stability of given carbonates
is
$BeCO_3 < MgCO_3 < CaCO_3 < K_2CO_3$
$Be, Mg$ and $Ca$ are present in second group and $K$ is present in first group
is
$BeCO_3 < MgCO_3 < CaCO_3 < K_2CO_3$
$Be, Mg$ and $Ca$ are present in second group and $K$ is present in first group
Was this answer helpful?
0
0
Top Questions on GROUP 2 ELEMENTS
- The correct order of density is
- JEE Main - 2023
- Chemistry
- GROUP 2 ELEMENTS
- Reaction of \(BeCl_2\) with \(LiAlH_4\) gives :
- \(AlCl_3\)
- \(BeH_2\)
- \(LiH\)
- \(LiCl\)
- \(BeAlH_4\)
- JEE Main - 2022
- Chemistry
- GROUP 2 ELEMENTS
- Which one of the following alkaline earth metal ions has the highest ionic mobility in its aqueous solution?
- JEE Main - 2022
- Chemistry
- GROUP 2 ELEMENTS
- The structures of beryllium chloride in solid state and vapour phase, are :
- NEET (UG) - 2021
- Chemistry
- GROUP 2 ELEMENTS
- What is the role of gypsum, $CaSO_{4}.2H_{2}O$ in setting of cement ? Identify the correct option from the following :
- NEET (UG) - 2020
- Chemistry
- GROUP 2 ELEMENTS
View More Questions
Questions Asked in NEET exam
- De-Broglie wavelength of an electron orbiting in the \(n = 2\) state of hydrogen atom is close to (Given Bohr radius = 0.052 nm):
- NEET (UG) - 2025
- de broglie hypothesis
- Which chromosome in the human genome has the highest number of genes?
- NEET (UG) - 2025
- Human genome
- In a certain camera, a combination of four similar thin convex lenses are arranged axially in contact. Then the power of the combination and the total magnification in comparison to one lens will be, respectively:
- NEET (UG) - 2025
- Images Formed By Lenses
AB is a part of an electrical circuit (see figure). The potential difference \(V_A - V_B\), at the instant when current \(i = 2\) A and is increasing at a rate of 1 amp/second is:
- NEET (UG) - 2025
- Electromagnetic Induction and Inductance
- A ball of mass 0.5 kg is dropped from a height of 10 m. The ball hits the ground and rises to a height of 1.5 m. The impulse imparted to the ball during its collision with the ground is : (Take \(g = 9.8 \, \text{m/s}^2\))
- NEET (UG) - 2025
- Collision and Impulse
View More Questions
Concepts Used:
Group 2 Elements
The group two or alkaline earth metals are s-block elements with two electrons in their s-orbital. They are alkaline earth metals. They are named so because of the alkaline nature of the hydroxides and oxides.
Alkaline earth metals are characterized by two s-electrons. This group of elements includes:
- Beryllium (Be)
- Magnesium (Mg)
- Calcium (Ca)
- Strontium (Sr)
- Barium (Ba)
- Radium (Ra)
Elements whose atoms have their s-subshell filled with their two valence electrons are called alkaline earth metals. Their general electronic configuration is [Noble gas] ns2. They occupy the second column of the periodic table and so-called as group two metals also.