iCON Education - s-Block Elements BITSAT Test

Question 1: Palette 1/3

BITSAT 2023 MCQ

Which one of the following decreasing orders of stability is correct?

A

$\mathrm{MgCO}_3>\mathrm{CaCO}_3>\mathrm{SrCO}_3>\mathrm{BaCO}_3$

B

$\mathrm{BaCO}_3>\mathrm{SrCO}_3>\mathrm{CaCO}_3>\mathrm{MgCO}_3$

C

$\mathrm{MgCO}_3>\mathrm{BaCO}_3>\mathrm{SrCO}_3>\mathrm{CaCO}_3$

D

$\mathrm{CaCO}_3>\mathrm{BaCO}_3>\mathrm{MgCO}_3>\mathrm{SrCO}_3$

Question 2: Palette 2/3

BITSAT 2022 MCQ

Which of the following compounds is thermodynamically is the most stable?

A

BaCO₃

B

MgCO₃

C

BeCO₃

D

CaCO₃

Question 3: Palette 3/3

BITSAT 2021 MCQ

Sodium iodide reacts with ammonia to gives

A

[Na(NH₃)₄]I

B

[Na(NH₃)₄]I₃

C

[Na(NH₃)I₃]I

D

[Na(NH₃)₃I]