Coordination compounds, D and F Block, Metallurgy, P-Block ...

Coordination compounds, D and

F Block, Metallurgy,

P-Block, NTA Abhyas

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How many of the following are optically

inactive ?

a. trans-[Co(en)2(NH3)Cl]2+

b. cis-[Co(en)2Br2]+

c. [Co((NH3)3Cl3]

d. trans-[Co(NH3)4Cl2]+

e. trans-[CoCl2(C2O4)2]3-

How many of the following are optically

inactive ?

a. trans-[Co(en)2(NH3)Cl]2+

b. cis-[Co(en)2Br2]+

c. [Co((NH3)3Cl3]

d. trans-[Co(NH3)4Cl2]+

e. trans-[CoCl2(C2O4)2]3-

Answer = 4

Which of the following is deliquescent ?

a. ZnCl2

b. Hg2Cl2

c. HgCl2

d. CdCl2

The minimum voltage required to electrolyse

alumina in the Hall-Heroult process is :

(Given that = ΔGfo (Al2O3) = - 1520 KJ mol-1

ΔGfo (CO2) = - 394 KJ mol-1 )

a. 1.575 V

b. 1.60 V

c. 1.312 V

d. -2.62 V

Incorrect match among the following is:

a. Vitamin B12-Cu

b. Cis-platin-Pt

c. Wilkinson catalyst-Rh

d. Chlorophyll-Mg

How many EDTA unit(s) are required to make

an octahedral complex with a Ca2+ ion ?

a. 6

b. 3

c. 1

d. 2

The sum of the total number of sigma bonds

between chromium and oxygen atom in

chromate and dichromate ions is:

The sum of the total number of sigma bonds

between chromium and oxygen atom in

chromate and dichromate ions is:

Answer = 12

How many of the following metals can be

extracted by auto-reduction ?

Fe, Zn, Pb, Al, Hg, Cu, K, Ca

How many of the following metals can be

extracted by auto-reduction ?

Fe, Zn, Pb, Al, Hg, Cu, K, Ca

Answer = 3

The pair in which phosphorus atom have a formal

oxidation state of +3 is:

a. Pyrophosphorous and pyrophosphoric acids

b. Orthophosphorous and pyrophosphorous

acids

c. Pyrophosphorous and hypophosphoric acids

d. Orthophosphorous and hypophosphoric acids

The pi-bonded organometallic compound which

has ethylene as one of its component is:

a. Dibenzene Chromium

b. Zeise salt

c. Ferrocene

d. Tetraethyl tin

Metal M forms a carbonyl compound in which it

is present in its lower valence state. Which of

the following bonding is not possible in this

metal carbonyl ?

Which of the following compound is expected

to be coloured ?

a. CuF2

b. CuCl

c. Ag2SO4

d. MgF2

Match the compound with the metal for which

it is used for the process of extraction.

(i) NaCN a. Titanium

(ii) Iodine b. Aluminium

(iii) Cryolite c. Silver ore

a. (i)-c, (ii)-a, (iii)-b

b. (i)-c, (ii)-b, (iii)-a

c. (i)-a, (ii)-c, (iii)-b

d. (i)-b, (ii)-a, (iii)-c

How many of the following can exhibit linkage

isomerism ?

i. [CoCl2(en)2]Cl

ii. (NH4)2[Pt(SCN)6]

iii. [Cr(H2O)6]Cl3

iv. K3[Al(C2O4)3]

v. [Co(NH3)5NO2]SO4

vi. [Ag(NH3)2]Cl

vii. K2[PdCl4]

How many of the following can exhibit linkage

isomerism ?

i. [CoCl2(en)2]Cl

ii. (NH4)2[Pt(SCN)6]

iii. [Cr(H2O)6]Cl3

iv. K3[Al(C2O4)3]

v. [Co(NH3)5NO2]SO4

vi. [Ag(NH3)2]Cl

vii. K2[PdCl4]

Answer = 2

Mercury on heating with aqua-regia gives:

a. Hg(NO3)2

b. HgCl2

c. Hg(NO2)2

d. Hg2Cl2

Van-arkel process and Mond’s process are

respectively used for refining of:

a. Zr and Ti

b. Ni and Zr

c. Ti and Ni

d. NI and Fe

The total number of possible isomers for the

complex compound [Cu(NH3)4] [PtCl4]

a. 4

b. 5

c. 6

d. 3

When MnO is fused with KOH and KNO3, a

coloured compound is formed. Choose the right

compound with the appropriate colour:

a. K2MnO4, green

b. KMnO4, purple

c. Mn2O3, green

d. Mn3O4, black

The method of zone-refining of metals is based

on the principle of :

a. Greater mobility of the pure metal than

that of impurity

b. Greater solubility of the impurity in the

molten state than in the solid.

c. Higher melting point of the impurity than

that of the pure metal.

d. All above are correct.

The number of sp hybridised atoms in

pseudohalogen cyanogen is/are:

The number of sp hybridised atoms in

pseudohalogen cyanogen is/are:

Answer = 4

The difference in the number of unpaired

electrons in Co2+ ion in its high spin and low

spin octahedral complexes is :

The difference in the number of unpaired

electrons in Co2+ ion in its high spin and low

spin octahedral complexes is :

Answer = 2

The number of correctly matched combination

is/are: Ore Element

Chalcopyrite Cu

Limestone Ca

Corundum Al

Magnetite Fe

Pyrolusite Mn

Cassiterite Zn

Cinnabar Hg

Calamine Ca

Siderite Sn

Cerussite Pb

TlI3 is an ionic compound. In the aqueous

solution, it provides:

a. Tl+ and I3-

b. Tl3+ and I-

c. Tl+, I- and I2

d. Tl3+ and I3-

Predict the order of 𝚫o for the following

compounds:

I. [Mn(H2O)6]2+

II. [Mn(CN)2(H2O)4]

III. [Mn(CN)4(H2O)2]2-

a. 𝚫o(I) < 𝚫o(II) < 𝚫o(III)

b. 𝚫o(II) < 𝚫o(I) < 𝚫o(III)

c. 𝚫o(III) < 𝚫o(II) < 𝚫o(I)

d. 𝚫o(I) < 𝚫o(III) < 𝚫o(II)

Spin only magnetic moment of the compound

Hg[Co(SCN)4] is √x B.M. The value of ‘x’ is :

Spin only magnetic moment of the compound

Hg[Co(SCN)4] is √x B.M. The value of ‘x’ is :

Answer = 15

XeF6 on partial hydrolysis with water, produces

a compound ‘X’. The same compound ‘X’ is

formed when XeF6 reacts with silica. The

compound X is:

a. XeF4

b. XeF2

c. XeO3

d. XeOF4

Which of the following is correct?

a. X = Black, MnO2, Y = Blue, K2CrO4, Z =

KMnO4

b. X = green, Cr2O3, Y = yellow, K2CrO4, Z =

K2Cr2O7

c. X = Black, MnO2, Y = Green, K2MnO4, Z =

KMnO4

d. X = Black, Bi2O3, Y = Colourless, KBiO2, Z =

KBiO3

Which of the following are not more basic than

Al(OH)3 ?

a. Ca(OH)2, Ce(OH)3

b. Yb(OH)3, Lu(OH)3

c. B(OH)3, Be(OH)2

d. Ce(OH)3, Lu(OH)3

How many molecules are acidic oxides among

the following:

CO, NO2, SO2, SO3, NO, N2O, SiO2, Cl2O7

a. 4

b. 5

c. 6

d. 7

MF + XeF4 ⟶ “A” (M+ = alkali metal cation)

The state of hybridisation of the central metal

atom ‘A’ and shape of the species are:

a. sp3d, TBP

b. sp3d3, distorted octahedral

c. sp3d3, pentagonal planar

d. No compound formed at all

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