Select the option containing correct order of the given parameter - Vidyadip

MCQ

Select the option containing correct order of the given parameter

A
$C > Si > Pb > Ge$ (Order of reactivity with alkali)
B
$C > Pb > Ge > Si$ (Order of reactivity with alkali)
C
$[CoCl_3(NH_3)_3]\, >\, [CoCl(NH_3)_5]Cl_2\, > $ $ [Co(NH_3)_6]Cl_3\,>\, [CoCl_2(NH_3)_4]Cl$ (order of electrical conductivity.)
✓
$[Co(NH_3)_6]Cl_3\, >\, [CoCl(NH_3)_5]Cl_2\, > $$ [CoCl_2(NH_3)_4]Cl\, >\, [CoCl_3(NH_3)_3]$ (order of electrical conductivity.)

✓

Answer

Correct option: D.

$[Co(NH_3)_6]Cl_3\, >\, [CoCl(NH_3)_5]Cl_2\, > $$ [CoCl_2(NH_3)_4]Cl\, >\, [CoCl_3(NH_3)_3]$ (order of electrical conductivity.)

d
Acidic nature of $\mathrm{C},$ $Si, Ge$ and $Pb$ decreases down the group hence reactivity decreases.

Greater the number of ionsa, greater will be the electrical conductivity. $III$ gives $4$ ions, $II$ gives $3$ ions, $IV$ gives $2$ ions; $I$ does not give ions.

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

$1-$ Phenoxypropane is treated with excess of conc. $HI$ at $0\,^oC$ and the mixture of products is treated with thionyl chloride. The products formed are

Which of the following does not apply to metallic bond

Which has maximum bond angle

On another planet jupiter, gauche $\&$ anti form of $1, 2-$ dichloroethane freezes and single bond rotation stops. Under these conditions these two forms can be considered as :

Which oxide is alkaline

Given $E_{C{u^{2 + }}/Cu}^o = 0.34\,V\,,\,E_{C{u^{2 + }}/Cu}^o = 0.15\,V$ Standard electrode potential for the half cell $Cu^+/Cu$ is ............. $\mathrm{V}$

Given below are two statements: One is labelled as Assertion $A$ and the other is labelled as Reason $R$.

Assertion $A:$ Butan$-1-$ol has higher boiling point than ethoxyethane.

Reason $R:$ Extensive hydrogen bonding leads to stronger association of molecules.

In the light of the above statements, choose the correct answer from the options given below:

In which of the following equilibria, the value of ${K_p}$ is less than ${K_c}$

In the following sequence of reactions, the alkene affords the compound $'B'$

$CH_3 - CH = CH - CH_3 \xrightarrow{{{O_3}}} A $$\xrightarrow[{Zn}]{{{H_2}O}} B.$

The compound $B$ is

Identify the incorrect statements about group $15$ elements :

$(A)$ Dinitrogen is a diatomic gas which acts like an inert gas at room temperature.

$(B)$ The common oxidation states of these elements are $-3,+3$ and +5 .

$(C)$ Nitrogen has unique ability to form $\mathrm{p} \pi-\mathrm{p} \pi$ multiple bonds.

$(D)$ The stability of +$5$ oxidation states increases down the group.

$(E)$ Nitrogen shows a maximum covalency of $6$.

Choose the correct answer from the options given below.