Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.

The hydration energy of Mg^(2+) ions is larger than that of:

Answer»

`AL^(3+)`
`Na^+`
`Be^(2+)`
`Mg^(3+)`

ANSWER :B
2.

The hydration energy of Mg^(++) is larger than that of

Answer»

`Al^(+3)`
`NA^(+)`
`Be^(++)`
`Mg^(+3)`

Solution :`Na^(+)` ion has larger size than `Mg^(2+)` ion and hence HYDRATION ENERGY of `Mg^(2+)` is larger than that of `Na^(+)`.
3.

The hydrated copper (II) ion is..............in colour as it absorbs................light and transmit its complementary colour.

Answer»


ANSWER :BLUE , ORANGE
4.

The hybridized state of Al^(3+) in the complex ion formed when AlCl_3 is treated with aqueous acid is

Answer»

`sp^3`
`dsp^2`
`sp^3d^2`
`sp^2d`

ANSWER :C
5.

The hydbridization state of carbon atoms in the product formed by the reaction of ethyl chloride with aqueous potassium hydroxide is:-

Answer»

SP
`sp^(2)`
`sp^(3)`
`sp^(3)d`

Solution :`CH_(3)-CH_(2)-Cl+UNDERSET((aq))(KOH)to underset("ETHYL ALCOHOL")(overset(sp^(3))(CH_(3))-overset(sp^(3))(CH_(2))-OH+KCl)`
6.

The hydrated cupric chloride is strongly heated.Which of the following statements is (are) correct for this ?

Answer»

It is reduced to `Cu_2Cl_2`
Cupic oxide is formed along with `Cu_2Cl_2`
Only `Cl_2` is liberated
`Cl_2` and HCL both are liberated

Solution :`3CuCl_2. 2H_2O oversetDeltatoCuO+Cu_2Cl_3+2HCl+Cl_2+H_2O`,( C) only `Cl_2` is liberated is wrong as evident from CHEMICAL equation.
7.

The hybridization states of the central atom in the complexes [Fe(CN)_(6)]^(3-),[Fe(CN)_(6)]^(4-) and [Co(NO_(2))_(6)]^(3-) are:

Answer»

`d^(2)sp^(3),sp^(3)d^(2) and DSP^(2)` respectively
`d^(2)sp^(3),sp^(3)d^(2) and sp^(3) d^(2)` respectively
`d^(2)sp^(3),sp^(3)d^(2) and d^(2)sp^(3)` respectively
all `d^(2)sp^(3)`

ANSWER :D
8.

The hybridization of the complex [CrCl_(2)(NO_(2))_(2)(NH_(3))_(2)]^(-) is:

Answer»

`SP^(3)d^(2)`
`d^(2)sp^(3)`
`sp^(3)d`
cannot be predicted

Solution :
9.

The hybridization states of [Ni(CO)_(4)], [Ni(CN)_(4)]^(2-) and [NiCl_(4)]^(2-) species are respectively

Answer»

`sp^(3), sp^(3), dsp^(2)`
`dsp^(2), sp^(3), sp^(3)`
`sp^(3), dsp^(2), dsp^(2)`
`sp^(3), dsp^(2), sp^(3)`

SOLUTION :`[NI(CO)_(4)]` is TETRAHEDRAL : `sp^(3)` hybridisation
`[Ni(CN)_(4)]` is square planar : `dsp^(2)` hybridisation
`[NiCl_(4)]^(2-)` is tetrahedral : `sp^(3)` hybridisation
10.

The hybridization state of carbon atoms in the product formed by the reaction of ethyl chloride with aqueous KOH is

Answer»

SP
`sp^2`
`sp^3`
`sp^3d`

ANSWER :C
11.

The hybridization of the central atom will change when :

Answer»

`NH_(3)` combines with `H^(+)`
`H_(3)BO_(3)` combines with`OH^(-)`
`NH_(3)` forms `NH_(2)^(-)`
`H_(2)O` combines with `H^(+)`

SOLUTION :
12.

Hybridisation of central atom in IC l_2^+ is

Answer»

`DSP^(2)`
`SP`
`sp^(2)`
`sp^(3)`

ANSWER :D
13.

The hybridization of sulphur in SO_(2) is:

Answer»

sp
`sp^(3)`
`sp^(2)`
`dsp^(2)`

Answer :C
14.

The hybridization of S in SO_(2) is

Answer»

sp
`sp^(3)`
`sp^(2)`
`DSP^(2)`

Answer :C
15.

The hybridization of Sin SF_(4) is

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`SP ^(3) d ^(2)`
`sp ^(3) d `
`sp ^(3) d ^(3)`
`sp ^(3)`

ANSWER :B
16.

The hybridization of [CoF_(6)]^(3-) and [Co(C_(2)O_(4))}^(3-) are :

Answer»

both `SP^(3)d^(2)`
both `d^(2)sp^(3)`
`sp^(3)d^(2)` and `d^(2)sp^(3)` RESPECTIVELY
`d^(2)sp^(3)` and `sp^(3)d^(2)` respectively

Answer :C
17.

The hybridization of carbon attached to chlorine in benzyl chloride is :

Answer»

`DSP^(2)`
`sp^(3)`
sp
`sp^(2)`

ANSWER :B
18.

The hybridization of boron in the stable borane having thelowest molecular weight is-

Answer»

`SP^(2) `
`sp^(3) `
`sp `
`sp^(3)d`

ANSWER :B
19.

The hybridization involved in the complex [Ni(CN)_(4)]^(2-) is (At. No. of Ni = 28)

Answer»

`d^(2)sp^(2)`
`d^(2)sp^(3)`
`DSP^(2)`
`sp^(3)`

Solution :`[Ni(CN)_(4)]^(2-)` has Niin +2 OXIDATION STATE

(In PRESENCE of strong field LIGAND `CN^(-)`, electrons in d-orbitals pair up)
20.

The hybridization involved in the complex[Ni(CN)_4]^(2-) is (At. No. Ni = 28)

Answer»

`d^2sp^2`
`d^2sp^3`
`dsp^2`
`sp^3`

ANSWER :C
21.

The hybridization involved in the complex [Ni(CN)_(4)]^(2-) is…………

Answer»

`SP^(3)`
`d^(2)sp^(3)`
`DSP^(2)`
`sp^(3)d^(2)`

Answer :B::C::D
22.

The hybridization in Icl_(7) is

Answer»

`sp^(3)d^(3)`
`d^(2)sp^(3)`
`sp^(3)d`
`sp^(3)`

SOLUTION :`Icl_(7)`. The HYBRIDISATION is `(1)/(2)(7+7+0-0)=7 (sp^(3)d^(3))`
23.

The hybridization in interhalogen compound AX_7 is

Answer»

`SP^(3)d^(3)`
`sp^(3)`
`sp^(3)d`
`sp^(3)d^(2)`

ANSWER :A
24.

The hybridization in ICI_(7) ( AX_(7)) is

Answer»

`SP^(3)d^(3)`
`sp^(3)`
`sp^(3)d`
`sp^(3)d^(2)`

ANSWER :A
25.

The hybridised orbitals used by silver in the complex [Ag(NH_(3))_(2)]^(+) are of the type:

Answer»

`sp^(2)`
`sp`
`sp^(3)`
`DSP^(2)`

ANSWER :B
26.

The hybridised orbitals are……….. And their orientation in space gives a definite……… to the complex ion.

Answer»


ANSWER :DIRECTIONAL, GEOMETRY
27.

The hybridisation that can account for the shape of ClF_(3) molecule is :

Answer»

1. `DSP^(2)`
2. `dsp^(3)`
3. `d^(2)sp^(3)`
4. `sp^(3)d^(2)`

Answer :B
28.

The hybridisation take place in [FeF_(6)]^(4-) and [Fe(H_(2)O)_(6)]^(2+) is .................

Answer»


ANSWER :`SP^(3)d^(2)`
29.

The hybridisation possessed by oxygen atom in OF_(2) molecule is :

Answer»

SP
`sp^(2)`
`sp^(3)`
`DSP^(2)`

Answer :C
30.

The hybridisation state of Mn^(7+) is permanganate ion is……

Answer»

`sp_(2)` HYBRIDISATION
`DSP^(2)` hybridisation
`d^(2)SP^(3)` hybridisation
`sp^(3)` hybridisation

Solution :`sp^(3)` hybridisation
31.

The hybridisation state of carbon in fullerence is

Answer»

SP
`sp^2`
`sp^3`
`sp^3d`

Solution :The HYBIRDISATION STATE of carbon is fullerene is `sp^2`
32.

The hybridisation of Xe and Sb in product when XeF_(4) react with SbF_(5) :-

Answer»

`SP^(3)d, sp^(3)d^(2)`
`sp^(3)d^(2), sp^(3)d`
`sp^(3), sp^(3)d^(2)`
`sp^(3)d^(3), sp^(3)d`

ANSWER :A
33.

The hybridisation of sulphur atom in SCl_(4) and the shape of the molecule are

Answer»

`sp^(3)` and TETRAHEDRAL
`sp^(3)d` and DISTORTED tetrahedral
`sp^(3)d` and TRIGONAL bipyramidal
`sp^(3)d` and tetrahedral

ANSWER :B
34.

The hybridisation of phosphorusin phosphorus pentachlride is

Answer»

`dsp^(3)`
`SP^(3)d`
`sp^(3)d^(2)`
`sp^(3)d^(2)`

Answer :B
35.

The hybridisation of [PtCl_6]^(2-) ion is:

Answer»

`d^2sp^3`
`sp^3d^3`
`sp^3d `
`sp^3d^2`

ANSWER :D
36.

The hybridisation of P in PO_4^(3-) is same as in :

Answer»

I in `ICI_4^-`
S in `SO_3`
N in `NO_3^-`
S in `SO_4^(2-)`

ANSWER :D
37.

The hybridisation of orbitals of N atom in NO_(3)^(-), NO_(2)^(+) and NH_(4)^(+) are respectively :

Answer»

`SP, sp^(3), sp^(2)`
`sp^(2), sp^(3), sp`
`sp, sp^(2), sp^(3)`
`sp^(2), sp, sp^(3)`

SOLUTION :Hybridisation
`NO_(3)^(-)(sp^(2)), NO_(2)^(+)(sp), NO_(4)^(+)(sp^(3))`
38.

The hybridisation of [Ni(CN)_4]^2- ion is:

Answer»

`dsp^2`
`sp^2d^2`
`d^2sp`
`sp^2`

ANSWER :A
39.

The hybridisation of [Ni(CN)_4]^-2 ion is:

Answer»

`dsp^2`
`sp^2d^2`
`d^2sp`
`sp^2`

ANSWER :A
40.

The hybridisation of nickel in tetracarbonyl nickel is

Answer»

`dsp^2`
`sp^3`
`sp^3d`
`sp^3d^2`

ANSWER :B
41.

The hybridisation of N in O _(2) ^(+), NO _(3) ^(-)and NH _(4) ^(+) respectively is

Answer»

`SP^(2), sp^(3), sp`
`sp, sp^(3), sp^(2)`
`sp, sp^(2), sp^(3)`
`sp^(2), sp, sp^(3)`

ANSWER :4
42.

The hybridisation of N-atom in amines is:

Answer»

`SP`
`sp^(2)`
`sp^(3)`
no hybridsation.

Answer :C
43.

The hybridisation of Iron in K_(4)[Fe(CN)_(6)] is

Answer»

`dsp^2`
`sp^3`
`d^2sp^3`
`sp^3d^2`

ANSWER :C
44.

The hybridisation of I in IC l_(2)^(-),IC l_(4)^(-) are respectively:

Answer»

`SP^(3), sp^(3)`
`sp^(3)d, sp^(3)d^(2)`
`sp^(3)d,sp^(3)`
`DSP^(2),sp^(3)d^(2)`

Answer :B
45.

The hybridisation of Cu in (NH_(4))_(2)[CuCl_(4)] and Cs_(2)[CuCl_(4)] is

Answer»

`DSP^(2)` in both
`dsp^(2) and sp^(3)` RESPECTIVELY
`sp^(3) and dsp^(2)` respectively
`sp^(3)` in both

ANSWER :B
46.

The hybridisation of Fe in K_(4)[Fe(CN)_(6)] is

Answer»

`DSP^(2)`
`SP^(3)`
`d^(2)sp^(3)`
`sp^(3)d^(2)`

ANSWER :C
47.

The hybridisation of Fe in K_4[Fe(CN)_6] complex is:

Answer»

`d^2sp^2`
`d^2sp^3`
`dsp^3`
`sp^3`

ANSWER :B
48.

The hybridisation of [CoF_(6)]^(3-) & [Co(C_(2)O_(4))_(3)]^(3-) are :-

Answer»

Both `SP^(3)d^(2)`
Both `d^(2)sp^(3)`
`sp^(3)d^(2)` and `d^(2)sp^(3)`
`d^(2)sp^(3) and sp^(3)d^(2)`

Solution :In `[CoF_(6)]^(3-)`, HYBRIDISATION - `sp^(3)d^(2)`
`[Co(O X)_(3)]^(3-)`, hybridisation `=d^(2)sp^(3)`
49.

The hybridisation of central metal ion and shape of Wilkinson's catalyst is

Answer»

`dsp^(2)`, square planar
`sp^(3)`, tetrahedral
`d^(2)sp^(3)`, octahedral
`dp^(3)d`, trigonal bipyramidal

Solution :`[RhCl(Pph)_(3)]` is CALLED WILKINSON CATALYST. It is square planar and `dsp^(2)` HYBRID.
50.

The hybridisation of central iodine atom in IF_(5),I_(3)^(-) and I_(3)^(+) are respectively :

Answer»

`SP^(3)d^(2), sp^(3)d,sp^(3)`
`sp^(3)d,sp^(3)d,sp^(3)`
`sp^(3)d^(2),sp^(3)d^(2),sp^(3)`
`sp^(3)d,sp^(3)d^(2),sp^(3)`

ANSWER :A