To distinguish between A and B,it is observed | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Alkali metals (except $Li$) react with oxygen to form oxides,whereas alkaline earth metals,when burnt in air,react with both $O_2$ and $N_2$ to fo

Vedclass · Accepted Answer

$K, Mg$

Vedclass · Answer

(D) Alkali metals (except $Li$) react with oxygen to form oxides,whereas alkaline earth metals,when burnt in air,react with both $O_2$ and $N_2$ to form oxides and nitrides respectively.$K$ is an alkali metal that forms $KO_2$ (superoxide) in air.$Mg$ is an alkaline earth metal that forms both $MgO$ and $Mg_3N_2$ when burnt in air.Therefore,$A = K$ and $B = Mg$.

To distinguish between $A$ and $B$,it is observed that both elements form oxides,but $B$ also forms a nitride when burnt in air. What are $A$ and $B$?

Similar Questions

$A$ hydrated solid $X$ on heating initially gives a monohydrated compound $Y$. $Y$ upon heating above $373 \ K$ leads to an anhydrous white powder $Z$. $X$ and $Z$,respectively,are

Which of the following orders is correct?

Soda lime is made from

Which of the following is $NOT$ obtained when metal carbides react with $H_2O$?

Which of the following compounds is/are used for oxygenating the submarine or spaceshuttle?

Vedclass Test Series

Exam Paper Generator

Online Exam Module