JEE Main202125 Jul 2021Evening ShiftChemistrys Block ElementsActual
Match List I with List II : List-I Elements List-II Properties (a) Li (i) Poor water solubility of I - salt (b) Na (ii) Most abundant element in cell fluid (c) K (iii) Bicarbonate salt used in fire extinguisher (d) Cs (iv) Carbonate salt decomposes easily on heating Choose the correct answer from the options given below:
Options
- A( a ) - ( iv ) ,   ( b ) - ( iii ) ,   ( c ) - ( ii ) ,   ( d ) - ( i )
- B( a ) - ( i ) ,   ( b ) - ( iii ) ,   ( c ) - ( ii ) ,   ( d ) - ( iv )
- C( a ) - ( iv ) ,   ( b ) - ( ii ) ,   ( c ) - ( iii ) ,   ( d ) - ( i )
- D( a ) - ( i ) ,   ( b ) - ( ii ) ,   ( c ) - ( iii ) ,   ( d ) - ( iv )
Correct answer
A. ( a ) - ( iv ) ,   ( b ) - ( iii ) ,   ( c ) - ( ii ) ,   ( d ) - ( i )
Step-by-step solution
(d) CsI salt is poor water soluble due to its low hydration energy. (b) NaHCO 3 is used in fire extinguisher. (c) K is most abundant element in cell fluid. (a) Li 2 CO 3 decomposes easily due to high covalent character caused by small size Li + cation. Hence, option 1 is the best response.