Noble gases are absorbed by - Vidyadip

MCQ

Noble gases are absorbed by

A
anhydrous calcium chloride
B
ferric hydroxide
C
conc. $H_2SO_4$
✓
activated coconut charcoal

✓

Answer

Correct option: D.

activated coconut charcoal

d
Activated charcoal is a very good absorbent of gas, whereas anhydrous $CaCl_2,\, Fe(OH)_3$ and conc. $H_2SO_4$ are dehydrating agents.

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

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Two soluble salts of iron $A$ & $B$ , on combining with excess of a reagent $(R)$ reduces compound $C$(Pale yellow) & $D$ (yellow) respectively. Reaction of $A$ with $D$ and that of $B$ with $C$ both produce a blue coloured compound.

Which of the following statement would be correct?

In a pseudo first order hydrolysis of ester in water, the following results were obtained.

$t/s$ $0$ $30$ $60$ $90$
$Ester/mol\, L^{-1}$ $0.55$ $0.31$ $0.17$ $0.085$

What will be the average rate of reaction between the time interval $30$ to $60$ seconds?

In which of the following reactions migration of alkyl group from carbon to oxygen is observed ?

In the series $HCl, HBr$ and $HI$, the boiling point increases in the order $HCl < HBr < HI$. This is due to

Which of the following process involve change in bond angle with a change in hybridization :-

A $s{p^3}$ hybridized orbital contains

The Lewis acid character of boron tri halides follows the order:

The frequency of radiation absorbed or emitted when transition occurs between two stationary states with energies $E_1$ (lower) and $E_2$ (higher) is given by

An aqueous solution ox $X$ is added slowly to an aqueous solution of $Y$ as shown in list $I$. The variation in conductivity of these reactions is given in List $II$. Match List $I$ with List $II$ and select the correct answer using the code given below the lists :

List $I$	List $II$
$P$. $\quad \underset{X}{\left( C _2 H _5\right)_3 N }+\underset{ Y }{ CH _3 COOH }$	$1.$ Conductivity decreases and then increases
$Q.$ $\quad \underset{X}{ KI (0.1 M )}+\underset{ Y }{ AgNO _3(0.01 M )}$	$2.$ Conductivity decreases and then does not change much
$R.$ $\quad \underset{X}{ CH _3 COOH }+\underset{ K }{ KOH }$	$3.$ Conductivity increases and then does not change much
$S$. $\quad \underset{X}{ NaOH }+\underset{Y}{ HI }$	$4.$ Conductivity does not change much and then increases

Codes: $ \quad P \quad Q \quad R \quad S $

Given that $\frac{1}{3}\mathop {{\lambda _m}}\limits^\infty \left( {F{e^{3 + }}} \right) = 68\,oh{m^{ - 1}}\,c{m^{ - 1}}\,e{q^{ - 1}}$ and $\frac{1}{2}\mathop {{\lambda _m}}\limits^\infty \left( {SO_4^{2 - }} \right) = 80\,oh{m^{ - 1}}\,c{m^{ - 1}}\,e{q^{ - 1}}$ What will be value of $\mathop {{\lambda _{eq}}}\limits^\infty \left( {F{e_2}{{\left( {S{O_4}} \right)}_3}} \right)$ ? ............ ${\rm{oh}}{{\rm{m}}^{ - 1}}{\mkern 1mu} {\rm{c}}{{\rm{m}}^2}$ $\mathrm{eq}^{-1}$