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Test: Oxygen & Sulphur Compounds - NEET MCQ


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25 Questions MCQ Test Chemistry Class 12 - Test: Oxygen & Sulphur Compounds

Test: Oxygen & Sulphur Compounds for NEET 2024 is part of Chemistry Class 12 preparation. The Test: Oxygen & Sulphur Compounds questions and answers have been prepared according to the NEET exam syllabus.The Test: Oxygen & Sulphur Compounds MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Oxygen & Sulphur Compounds below.
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Test: Oxygen & Sulphur Compounds - Question 1

Direction (Q. Nos. 1-10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.

Q. 

Which of the following statement is correct about the hydride of group 16 elements?

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 1

Order of acidic strength, thermal stability and melting points and boiling points are given in correct order.

Test: Oxygen & Sulphur Compounds - Question 2

The pair that contains mixed oxides is

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 2

Mixed oxides are made up of two simple oxides like
Pb3O4 (2PbO + PbO2), Fe3O4 (FeO + Fe2O3) , Mn3O4 (2MnO + MnO2

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Test: Oxygen & Sulphur Compounds - Question 3

The acid having a sulp hur atom with a lone pair of electrons on it, is

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 3

Sulphur having valency 6 do not possess lone pair while the sulphur with valency 4 possess one lone pair.

Test: Oxygen & Sulphur Compounds - Question 4

Charring of cane sugar by sulphuric acid shows ...... property of the acid.

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 4

Cone. H2SO4 is a strong dehydrating agent. Many wet gases can be dried by passing them through sulphuric acid. H2SO4 removes water from organic compounds. It is evident by its charring action on carbohydrates.

Test: Oxygen & Sulphur Compounds - Question 5

Which of the following statements is incorrect?

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 5

Disulphur dichlor

The angle between  the   planes is 90°.
The structure is referred to as gauche.

Test: Oxygen & Sulphur Compounds - Question 6

xSo2 + yMnO-4 + zH2O → Mn2+ + SO42- + H+ . In this, three values of x, y, z are

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 6

Test: Oxygen & Sulphur Compounds - Question 7

Which of the following is wrong statement?

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 7

The chemical reaction of H2SO4 as a result of its low volatility, strong acidic character, stiong affinity for water and ability to act as an oxidising agent.

Test: Oxygen & Sulphur Compounds - Question 8

Among the following oxyacids of sulphur, which one has more than one oxidation state for sulphur?

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 8

In thiosulphuric acid, S has both - 2 and + 6 oxidation states.

Test: Oxygen & Sulphur Compounds - Question 9

In SO3 molecule, 3 oxygen atoms are attached to sulphur atom through double bonds. Hence, the molecules consist 3π-bonds. The types of pi-bonds present in SO3 molecule are

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 9

In gas phase, SO3 molecule is triangular planar having sp2-hybridisation of the S-atom. There are three sigma bonds formed by sp2-p overlap and three pi-bonds are by pπ-pπ overlap and two pπ-dπ overlap.

Test: Oxygen & Sulphur Compounds - Question 10

Which of the following is known as C aro’s acid?

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 10

H2SO5 is known as Caro's acid or peroxysuiphuric acid.

Test: Oxygen & Sulphur Compounds - Question 11

Direction (Q. No. 11) This section is based on Statements I and Statements II. Select the correct answer from the codes given below.

Q. 

Statement I : In Caro’s acid (H2SO5), the oxidation state of sulphur is found to be +8.

Statement II : In Caro’s acid, sulphur atom is attached to four oxygen atoms directly.

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 11

The oxidation state of sulphur in caro's acid is +6. The structure of the acid is

The two of the attached O-atoms impart +2 oxidation state each to the sulphur atom and rest two O-atoms (single bonded) imparts +1 oxidation state each to the S-atom. Hence, S-atom has a total of +6 oxidation state

*Multiple options can be correct
Test: Oxygen & Sulphur Compounds - Question 12

Direction (Q. Nos. 12-15) This section contains 4 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.

Q. 

The incorrect statements among the following are

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 12

In SO2, the oxidation state of S is + 4 , i.e. it can be increased or decreased. Hence, SO2 can act as both oxidant and reductant.

*Multiple options can be correct
Test: Oxygen & Sulphur Compounds - Question 13

The chemical species having sp2-hybridisation for the central atom is

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 13

SO3 are sp2-hybridised with triangular planar geometry.

*Multiple options can be correct
Test: Oxygen & Sulphur Compounds - Question 14

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

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 14

Sodium thiosulphate is an inorganic compound also used to treat fungal infection of skin diseases.

*Multiple options can be correct
Test: Oxygen & Sulphur Compounds - Question 15

Which pair is isostructural?

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 15

(i) CO2 and OCS both are sp-hybrid ised and have linear geometry.

(ii)   both are sp3-hybridised and have tetrahedral geometry.

 

Test: Oxygen & Sulphur Compounds - Question 16

Direction (Q. Nos. 16 and 17) This section contains a paragraph, describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).

Passage

Hydrated sodium thiosulphate, Na2S2O3 .5H2O is called hypo. It can be prepared by Spring’s reaction by adding iodine to a mixture of sodium sulphide and sodium sulphite.

Na2S + Na2SO3 + I2 → 2NaI + Na2S2O3 (Spring's reaction)
It is an efflorescent substance and at 215°C, it is completely dehydrated to Na2S2O3. Its reaction with iodine is used fo r the iodometric estimation of oxidising agents like CuSO4, CaOCI2, KMnO4, MnO2, etc., which on reaction with KI liberate I2. It is used in the bleaching industry to destroy excess chlorine on fabrics. It is used in photography as fixer since, it dissolves unexposed AgBr on the film.

Q. 

Select the incorrect statement regarding hypo.

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 16

In , central atom sulphur is sp3-hybridised and it has tetrahedral shape.

Test: Oxygen & Sulphur Compounds - Question 17

Passage

Hydrated sodium thiosulphate, Na2S2O3 .5H2O is called hypo. It can be prepared by Spring’s reaction by adding iodine to a mixture of sodium sulphide and sodium sulphite.

Na2S + Na2SO3 + I2 → 2NaI + Na2S2O3 (Spring's reaction)

It is an efflorescent substance and at 215°C, it is completely dehydrated to Na2S2O3. Its reaction with iodine is used fo r the iodometric estimation of oxidising agents like CuSO4, CaOCI2, KMnO4, MnO2, etc., which on reaction with KI liberate I2. It is used in the bleaching industry to destroy excess chlorine on fabrics. It is used in photography as fixer since, it dissolves unexposed AgBr on the film.

Q. 

In Na2S4O6, sulphur has different oxidation states. They are

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 17

The structure of Na2S4O6

In this structure, two central sulphur atoms have zero oxidation number because electron pair forming th e S—S bond remain in the centre. Let the oxidation number of (remaining atoms) S atom be X.
2(+1)+ 6(-2)+ 2x+ 2(0) = 0
For Na for O

∴ Two central S-atoms have zero oxidation state and two terminal S- atoms have +5 oxidation state,

Test: Oxygen & Sulphur Compounds - Question 18

Direction (Q. Nos. 18-20) Choices for the correct combination of elements from Column I and Column II are given as options (a), (b), (c) and (d), out of which one is correct.

Q. 

Match the Column I with Column II and mark the correct option from the codes given below.

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 18

The oxidation states of sulphur in H2SO3, H2SO4, and H2SO5 are respectively +4, +6 and +6.

Test: Oxygen & Sulphur Compounds - Question 19

Match the Column I with Column II and mark the correct option from the codes given below.

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 19

Test: Oxygen & Sulphur Compounds - Question 20

Match the Column I with Column II and mark the correct option from the codes given below.

Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 20

*Answer can only contain numeric values
Test: Oxygen & Sulphur Compounds - Question 21

Direction (Q. Nos. 21-25) This section contains 5 questions. When worked out will result in an integer from 0 to 9 (both inclusive).

Q. 

The number of S—S bonds in sulphur trioxide trimer (S3O9) are


Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 21

*Answer can only contain numeric values
Test: Oxygen & Sulphur Compounds - Question 22

The number of metal sulphides precipitated by passing H2S in acidic medium among
ZnS, PbS, CuS, NiS, MnS, CdS, CoS, HgS, SnS.


Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 22

II group radicals Pb2+, Cu2+ ,Cd2+, Hg2+ ,Sn2+ are precipitated with in acidic medium.
IV group cations Zn2+, Mn2+, CO2+, Ni2+ are precipitated with H2S in alkaline medium.

*Answer can only contain numeric values
Test: Oxygen & Sulphur Compounds - Question 23

The number of chemical species having sp3-hybridisation.
SO3, SO2, SOCI2, SO2CI2, O3, SF2, SF4


Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 23

The four chemical species among the given molecules having sp3-hybridisation of central atom are SO2CI2, SF2,
and H2SO4

*Answer can only contain numeric values
Test: Oxygen & Sulphur Compounds - Question 24

The number of covalent bonds present in H2SO5.


Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 24

H2SO5 (peroxomonosulphuric acid)
It has nine covalent bonds.

*Answer can only contain numeric values
Test: Oxygen & Sulphur Compounds - Question 25

Number of molecules having non-zero dipole moment in 
O3, SO3, SF4, SF6, H2S, CS2, SO2, H2O and H2O2.


Detailed Solution for Test: Oxygen & Sulphur Compounds - Question 25

SO3, SF6 and CS2 have zero dipole moment because of symmetry in the structure.

The remaining 6 have dipole moments.

Hence 6 is the correct answer.

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