EduRev

Courses

Get the App Signup / Login

Welcome Back

Forgot Password?

New User? Sign Up

Create your account now

I accept the Terms & Conditions.

Already Have an Account? Login

Major Inorganic Chemistry

60 Questions MCQ Test MOCK Test Series for IIT JAM Chemistry | Major Inorganic Chemistry

Description

This mock test of Major Inorganic Chemistry for Chemistry helps you for every Chemistry entrance exam. This contains 60 Multiple Choice Questions for Chemistry Major Inorganic Chemistry (mcq) to study with solutions a complete question bank. The solved questions answers in this Major Inorganic Chemistry quiz give you a good mix of easy questions and tough questions. Chemistry students definitely take this Major Inorganic Chemistry exercise for a better result in the exam. You can find other Major Inorganic Chemistry extra questions, long questions & short questions for Chemistry on EduRev as well by searching above.

QUESTION: 1

From B₂H₆, all the following can be prepared except

A.
Boric Acid
B.
[BH₂(NH₃)₂]⁺[BH₄]^–
C.
B₂(CH₃)₆
D.
NaBH₄

Solution:

QUESTION: 2

Which of the following process is used in extractive metallurgy of magnesium?

A.
Fused salt electrolysis
B.
Self reduction
C.
Aqueous solution electrolysis
D.
Thermite reduction

Solution:

QUESTION: 3

The correct order of boiling point is:

A.
H₂O < H₂S < H₂Se < H₂Te
B.
H₂O > H₂Se > H₂Te > H₂S
C.
H₂O > H₂S > H₂Se > H₂Te
D.
H₂O > H₂Te > H₂Se > H₂S

Solution:

QUESTION: 4

MnCr₂O₄ is:

A.
Normal spinel with total CFSE of –15.5 Dq
B.
Inverse spinel with total CFSE of –15.5 Dq
C.
Normal spinel with total CFSE of –24 Dq
D.
Inverse spinel with total CFSE of –24 Dq

Solution:

QUESTION: 5

Silica gel contains [CoCl₄]^2– as an indicator when activated, silica gel becomes dark blue while upon absorption of moisture, its color changes to pale pink. This is because:

A.
Co(II) changes its coordination number from tetrahedral to octahedral
B.
Co(II) changes its oxidation state to Co(III)
C.
Tetrahedral crystal field splitting is not equal to octahedral crystal field splitting
D.
Co(II) forms kinetically labile while Co(III) forms kinetically inert complexes

Solution:

QUESTION: 6

The HOMO in CO is:

A.
π-bonding
B.
σ-bonding
C.
π-anti bonding
D.
σ-anti bonding

Solution:

QUESTION: 7

What is the geometry of [AuCl₄]^– ion?

A.
Square planar
B.
Tetrahedral
C.
Trigonal pyramidal
D.
See-Saw

Solution:

QUESTION: 8

The reagent ‘oxine’ commonly used in analytical chemistry is:

Solution:

QUESTION: 9

Thermal stability of hydrides of first group elements follows the order

A.
LiH > NaH > KH > RbH
B.
LiH > KH > NaH > RbH
C.
LiH > RbH > KH > NaH
D.
LiH > KH > RbH > NaH

Solution:

As we move from top to bottom in a group the size of the alkali metals increases, thereby the bond dissociation energy decreases hence it requires less energy to decompose so thermal stability also decreases..
So the order of thermal stability of IA group elements is

LiH > NaH > KH > RbH.

QUESTION: 10

On dissolving moderate amount of sodium metal in liquid NH3 at low temperature, which one of the following does not occur?

A.
Blue colored solution is obtained
B.
Na⁺ ions are formed in the solution
C.
Liquid NH₃ becomes good conductor of electricity
D.
Liquid NH₃ remains diamagnetic

Solution:

QUESTION: 11

Mg₂C₃ reacts with water forming propyne, C^4-₃ has:

A.
Two σ and two π bonds
B.
Three σ and one π bonds
C.
Two σ and one π bonds
D.
Two σ and three π bonds

Solution:

QUESTION: 12

At pH 7, the zinc(II) ion in carbonic anhydrase reacts with CO₂ to give:

Solution:

QUESTION: 13

NH₄Cl (s) is heated in test tube. Vapours are brought in contact with red litmus paper, which changes to blue and then to red. It is because of :

A.
Formation of NH₄OH and HCl
B.
Formation of NH₃ and HCl
C.
Greater diffusion of NH₃ than HCl
D.
Greater diffusion of HCl than NH₃

Solution:

QUESTION: 14

Each of the compounds Pt(NH₃)₆Cl₄, Cr(NH₃)₆Cl₃, Co(NH₃)₄Cl₃ and K₂PtCl₆ were dissolved in water to make its 0.001 M solution. The correct order of their increasing conductivity in solution is:

A.
K₂PtCl₆< Co(NH₃)₄Cl₃< Cr(NH₃)₆Cl₃< Pt(NH₃)₆Cl₄
B.
Cr(NH₃)₆Cl₃< Co(NH₃)₄Cl₃< K₂PtCl₆< Pt(NH₃)₆Cl₄
C.
Co(NH₃)₄Cl₃< K₂PtCl₆< Cr(NH₃)₆Cl₃< Pt(NH₃)₆Cl₄
D.
Pt(NH₃)₆Cl₄< Co(NH₃)₄Cl₃< Cr(NH₃)₆Cl₃< K₂PtCl₆

Solution:

QUESTION: 15

Hot concentrated HNO₃ converts graphite into :

A.
Graphite oxide
B.
Benzene hexacarboxylic acid
C.
Both (A) and (B)
D.
None

Solution:

QUESTION: 16

BH₃.CO in more stable than BF₃.CO because:

A.
CO is a soft base and BH₃ and BF₃ are soft and hard acids respectively
B.
CO is a hard base and BH₃ and BF₃ are hard and soft acids respectively
C.
CO is a soft base and BH₃ and BF₃ are hard and soft acids respectively
D.
CO is a soft acid and BH₃ and BF₃ are soft and hard bases respectively

Solution:

QUESTION: 17

⇌

How can this reaction be made to proceed in forward direction?

A.
Addition of borax
B.
Addition of cis-1, 2 diol
C.
Addition Na₂HPO₄
D.
Addition of trans-1, 2-diol

Solution:

QUESTION: 18

In cyclophosphazenes, (NPX₂)₃ (X = F, Cl, Br and Me), the strength of p—N p-bond various with X in the order:

A.
F > Cl > Br > Me
B.
Me > F > Cl > Br
C.
Br > Cl > F > Me
D.
Me > Br > Cl > F

Solution:

QUESTION: 19

Which of the following statemets is true?

A.
The dipole moment of NF₃ is zero
B.
The dipole moment of NF3 is less than NH₃
C.
The dipole moment of NF₃ is more than NH₃
D.
The dipole moment of NH₃ is zero

Solution:

QUESTION: 20

Toxicity of cadmium and mercury in the body in being reversed by proteins, mainly using the amino acid residue:

A.
Glycine
B.
Leucine
C.
Lysine
D.
Cysteine

Solution:

QUESTION: 21

For the following reaction

The major product A and B are respectively:

Solution:

QUESTION: 22

The spin-only (μS) and spin plus orbital (μS+L) magnetic moment of [CrCl₆]^3– are:

A.
3.87 BM and 5.20 BM
B.
2.84 BM and 5.20 BM
C.
3.87 BM and 6.34 BM
D.
2.84 BM and 6.34 BM

Solution:

QUESTION: 23

The red colour of ruby is due to:

A.
d-d transition of Cr³⁺ ion in Cr₂O₃ lattice
B.
d-d transition of Cr³⁺ ion in Al₂O₃ lattice
C.
Ligand to metal charge transfer transition
D.
Metal to metal charge transfer transition

Solution:

QUESTION: 24

The carbide which gives ethyne on hydrolysis:

A.
Al₄C₃
B.
CaC₂
C.
Fe₃C
D.
Mg₂C₃

Solution:

QUESTION: 25

Choose the correct option for carbonyl fluoride with respect to bond angle and bond length:

Solution:

QUESTION: 26

Which of the following is false?

A.
Van der Waals forces are responsible for the formation of molecular crystals.
B.
Boiling point of NH₃is greater than SbH₃.
C.
In graphite, van der Waals forces act between the carbon layers.
D.
Branching lowers the boiling points of isomeric organic compounds due to reduction in the vander Waals force of attraction

Solution:

QUESTION: 27

Strength of hydrogen bond is intermediate between:

A.
Vander Waals and covalent
B.
Ionic and covalent
C.
Ionic and metallic
D.
Metallic and covalent

Solution:

QUESTION: 28

Correct order of strength of bonding among:

A.
I > IV > II > III
B.
I > IV > III > II
C.
IV > I > II > III
D.
II > I > IV > III

Solution:

QUESTION: 29

Polarization is the distortion of the shape of an anion by an adjacently placed cation. Which of the following statement is correct:

A.
Maximum polarization is brought about by a cation of high charge.
B.
Minimum polarization is brought about by a cation of small radius
C.
A large cation is likely to bring about a large degree of polarization.
D.
A small anion is likely to undergo a large degree of polarization

Solution:

QUESTION: 30

Correct order of P—P bond length in the following compound is:

A.
P₂F₄< P₂(CH₃)₄< P₂(CF₃)₄< P₂H₄
B.
P₂F₄< P₂(CF₃)₄< P₂(CH₃)₄< P₂H₄
C.
P₂F₄< P₂H₄< P₂(CH₃)₄< P₂(CF₃)₄
D.
P₂F₄< P₂(CH₃)₄< P₂H₄< P₂(CF₃)₄

Solution:

*Multiple options can be correct

QUESTION: 31

In which of the following reaction(s) hybridization of asterisk atom does not change?

Solution:

B: Nitrogen is sp³in both NH₃and NH₄⁺
C: S is sp²in both SO₂and SO₃.
D: d²sp³hybridization in both
so B,C,D correct

*Multiple options can be correct

QUESTION: 32

Of the following molecules, which do not have permanent dipole moment?

A.
SiF₄
B.
BF₃
C.
PF₃
D.
PF₅

Solution:

*Multiple options can be correct

QUESTION: 33

Select correct statement about N₂O₄.

A.
It self ionises as NO⁺, NO₃
B.
N₂O₄ is paramagnetic
C.
Substance containing NO⁺ is said to be acid and that containing NO₃ is said to be base
D.
NO₂ dimerizes to N₂O₄ with disappearance in paramagnetism

Solution:

*Multiple options can be correct

QUESTION: 34

Which of the following statement (s) is/are correct with respect to alkali metal bicarbonates?

A.
In crystalline sodium bicarbonate, the HCO₃anions form an infinite chain through H–bonding.
B.
Bicarbonates do not produce any color with phenophthalein indicator.
C.
All bicarbonates except that of lithium are found in solid state.
D.
KHCO₃is formed when CO₂ (in excess) reacts with KO₂ (medium water).

Solution:

*Multiple options can be correct

QUESTION: 35

Which of the following reagents will be useful in separating a mixture of Zn²⁺ and Cu²⁺ ions?

A.
H₂S in alkaline medium
B.
H₂S in acidic medium
C.
Excess of NaOH solution
D.
Na₂S in neutral medium

Solution:

*Multiple options can be correct

QUESTION: 36

Which statement(s) is/are correct about the Prussian blue Fe₄[Fe(CN)₆]₃.

A.
The oxidation states of outer Fe & inner Fe an +3 and +2 respectively.
B.
The oxidation states of outer & inner Fe an +2 and +3 respectively
C.
Fe(II) is present in low spin with hexa coordinate which Fe(III) is present in high spin with hexacoordinate
D.
Fe(II) is present in low spin with hexa coordinate which Fe(III) is also present in low spin with hexacoordinate

Solution:

*Multiple options can be correct

QUESTION: 37

Select the correct statement

A.
All three fluorides are decomposed by water, XeF₂ slowly and, XeF₄ and XeF₆ rapidly.
B.
XeF₄ and XeF₆ can act as fluoride ion acceptors as well as fluoride ion donors.
C.
Partial hydrolysis of XeF₆ gives XeOF₄.
D.
Reaction of XeF₆ with silica gives XeOF₄

Solution:

*Multiple options can be correct

QUESTION: 38

SO₂act as a/an:

A.
Oxidizing agent
B.
Reducing agent
C.
Bleaching agent
D.
Disinfectant

Solution:

*Multiple options can be correct

QUESTION: 39

The inverse spinel among the following mixed metal-oxides is/are:

A.
MgFe₂O₄
B.
Fe₃O₄
C.
Co₃O₄
D.
CrFe₂O₄

Solution:

*Multiple options can be correct

QUESTION: 40

Which of the following statement(s) is/are correct?

A.
Bond-length of CO⁺ is shorter than CO
B.
Bond-length of CO⁺ is longer than CO
C.
Both CO⁺ and CO have equal bond-length
D.
Bond order of CO⁺is greater than CO

Solution:

B.O of CO is 3 and CO+ is 2.5.

As B.O of CO+ is less than CO, hence the bond length of CO+ is greater than CO.