Ammonia is dried over - Vidyadip

MCQ

Ammonia is dried over

✓
Quick lime
B
Slaked lime
C
Anhy. $CaC{l_2}$
D
None of these

✓

Answer

Correct option: A.

Quick lime

a
Ammonia is prepared by heating a mixture of calcium hydroxide and ammonium chloride.

$Ca ( OH )_2( s )+2 NH _4 Cl ( s ) \rightarrow CaCl _2( s )+2 H _2 O ( l )+2 NH _3( g )$

Concentrated sulphuric acid conc. $H _2 SO _4$ and anhydrous calcium chloride $CaCl _2$ are not used to dry ammonia because they react with it. The gas is passed through fresh quicklime (solid calcium oxide lumps) to effectively dry it. Ammonia is collected by upward delivery as it is lighter than air.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from p -Block elements - ll→p -Block elements - ll — all question types→Chemistry STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

Which of the following lanthanoid ions is diamagnetic ?

(At. nos. $Ce = 58, Sm = 62,$$ Eu = 63, Yb = 70$)

Hydrolysis of alkyl isocyanide yields:

The standard electrode potentials $\left( {E_{{M^ + }/M}^\circ} \right)$ of four metals $A, B, C$ and $D$ are $-1.2\, V, 0.6\, V, 0.85\, V$ and $- 0.76\, V$, respectively. The sequence of deposition of metals on applying potential is

$\ce{BrF_5}$ is a:

The crystal Field stabilization Energy $(CFSE)$ of $\left[ CoF _{3}\left( H _{2} O \right)_{3}\right]\left(\Delta_{0}< P \right)$ is $:-$

Which of the following chemicals can be added for sweetening of food items at cooking temperature and does not provide calories?

If current $(I)$ of an electrolytic cell is doubled and time $(t)$ for electrolysis is halved then $\frac{mass}{eq.wt.}$ ratio becomes :-

The $V-C$ distance in $V(CO)_6$ and $[V(CO)_6]^-$ are respectively (in $pm$)-

The total number of isomers for a square planar complex $[M(F)(Cl)(SCN (NO_2)]$ is

For the reaction between $A$ and $B$ , the initial rate of reaction $(r_0)$ was measured for different initial concentration of $A$ and $B$ as given below Order of the reaction with respect to $A$ and $B$ respectively, is $\sqrt 2 = 1.4 ,\,\sqrt 3 \times 10^{-4}$

$A/mol\,L^{-1}$	$0.2$	$0.2$	$0.4$
$B/mol\,L^{-1}$	$0.3$	$0.1$	$0.05$
$r_0/mol^{-1}s^{-1}$	$5.0\times 10^{-5}$	$5.0\times 10^{-5}$	$1.4\times 10^{-4}$