Which of the following metals,upon burning in | vedclass

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

Question

(C) Among the alkali metals $(Group \ 1)$,only $Li$ reacts with atmospheric nitrogen to form a nitride $(Li_3N)$.All alkaline earth metals $(Group \ 2

Vedclass · Accepted Answer

$K$

Vedclass · Answer

(C) Among the alkali metals $(Group \ 1)$,only $Li$ reacts with atmospheric nitrogen to form a nitride $(Li_3N)$.All alkaline earth metals $(Group \ 2)$ react with nitrogen to form nitrides.When these nitrides react with moisture $(H_2O)$,they release ammonia $(NH_3)$ gas,which has a characteristic pungent smell.$1. \ Mg + N_2 	o Mg_3N_2 \xrightarrow{H_2O} Mg(OH)_2 + NH_3$$2. \ Ca + N_2 	o Ca_3N_2 \xrightarrow{H_2O} Ca(OH)_2 + NH_3$$3. \ Li + N_2 	o Li_3N \xrightarrow{H_2O} LiOH + NH_3$$4. \ K + N_2 	o 	ext{No reaction}$Since $K$ does not form a nitride,it does not release ammonia upon exposure to moist air.

List-$I$ (Metal)	List-$II$ (Emitted light wavelength $(nm)$)
$A. Li$	$I. 670.8$
$B. Na$	$II. 589.2$
$C. Rb$	$III. 780.0$
$D. Cs$	$IV. 455.5$

Which of the following metals,upon burning in moist air,does not produce the smell of ammonia?

Similar Questions

Which of the following substances is used in gunpowder?

Which of the following compounds is obtained as a by-product in the synthesis of sodium carbonate by the Solvay process?

Match the List-$I$ with List-$II$.

List-$I$ (Metal) List-$II$ (Emitted light wavelength $(nm)$)

$A. Li$ $I. 670.8$

$B. Na$ $II. 589.2$

$C. Rb$ $III. 780.0$

$D. Cs$ $IV. 455.5$

Choose the most appropriate answer from the options given below:

The set of raw materials used in the $SOLVAY$ process are:

The strongest reducing agent among the alkali metals is

Vedclass Test Series

Exam Paper Generator

Online Exam Module