Set of Important MCQs on the Chemistry of Oxygen And Sulphur in inorganic chemistry for the preparation of tests.
The common oxidation states of group IVA elements are
- +4 only
- +2, +4
- +4, +6
- +6 only
Question’s Answer:+4, +6
HS acts as what kind of agent?
- Chlorinating agent
- Oxidizing agent
- Reducing agent
- None of A, B, and C
Question’s Answer:Reducing agent
What is the commonly used catalyst in the manufacture of H2SO4?
- Fe2O3 with a little CuO
- Vâ‚‚O5
- Platinized asbestos and MgSO4
- All A, B, and C
Question’s Answer: All A, B, and C
What are the geometry and dipole moment of O3?
- Angular and non-zero
- Angular and zero
- Linear and zero
- Linear and non-zero
Question’s Answer: Angular and non-zero
Molecule of oxygen is  __________.
- Paramagnetic
- Diamagnetic
- Ferromagnetic
- None of A, B, and C
Question’s Answer: Paramagnetic
What is the oxidation number of S in H2S?
- +2
- +1
- 1
- -2
Question’s Answer:-2
SO2 acts as what kind of acid or base?
- Lewis acid
- Lewis base
- Hard acid
- Hard base
Question’s Answer: Lewis base
What is the structure of SO2?
- V-shaped
B: Angular
- Linear
- Planner
Question’s Answer: V-shaped
The gaseous mixture of N2O and O2 is used as_____ .
- Fuel
- Anesthetic
- Oxidizing agent
- Reducing agent
Question’s Answer: Anesthetic
The Hâ‚‚SO, gained by the contact process having purity
- 70%
- 74%
- 82%
- 78%
Question’s Answer: 78%
The contact process is generally used when acid is required for the manufacture of _________.
- Lead accumulators
- Fine chemicals
- Explosives
- All A, B, and C
Question’s Answer: All A, B, and C
The specific gravity of H2SO4 is
- 1.84
- 1.37
- 1.17
- 1.57
Question’s Answer: 1.84
When Hâ‚‚SO, is used?
- In the dental filling
- In the purification of gold and silver
- In the preparation of aqua regia
- None of A, B, and C
Question’s Answer: None of A, B, and C
Perdisulphuric acid is ______ .
- H-acid
- Caro acid
- Marshal
- None of A, B, and C
Question’s Answer: Marshal
Black and white photographic film contain small grains of which of the following?
- Silver chloride
- Silver bromide
- Silver iodide
- Any of A, B, and C
Question’s Answer: Silver bromide
Which electronic configuration belongs to an element of group 16?
- [He] 2s2 2p2
- [Ar] 3d10 4s2 4p6
- [Ar] 3d5 4s1
- [Ne] 3s2 3p4
Question’s Answer: [Ne] 3s2 3p4
O2 molecule is ___ .
- Paramagnetic
- Ferromagnetic
- Ferrmagnetic
- Diamagnetic
Question’s Answer: Paramagnetic
Thermal stability of hydrides of group 16 elements decreases in the following order.
- Hâ‚‚Po > Hâ‚‚Te> Hâ‚‚Se > Hâ‚‚S. Hâ‚‚O
- Hâ‚‚S > Hâ‚‚Se> Hâ‚‚O > Hâ‚‚Te > Hâ‚‚Po
- Hâ‚‚O > Hâ‚‚S > Hâ‚‚Se > Hâ‚‚Te > Hâ‚‚Po
- Hâ‚‚S > Hâ‚‚Se > Hâ‚‚Te > Hâ‚‚O > Hâ‚‚Po
Question’s Answer: H₂O > H₂S > H₂Se > H₂Te > H₂Po
Which types of halides are formed by member of group IVA?
- MX2
- MX4
- MX6
- All A, B, and C
Question’s Answer:cAll A, B, and C
How many elements in Group IV A?
- 5
- 4
- 3
- 6
Question’s Answer: 5
What is Electronegativity of oxygen?
- 3.5
- 2.5
- 5.3
- 2.1
Question’s Answer: 3.5
Which of the mentioned is not true for ozone?
- It is a strong sterilizing agent
- It attacks organic compounds containing carbon-carbon double bond
- Its molecular is linear and has two different 0-0 bond lengths
- It is more powerful oxidizing agent at molecular oxygen
Question’s Answer: Its molecular is linear and has two different 0-0 bond lengths
What trend is observed in ionization energy of group IVA elements down the group?
- Increases down the group
- First decreases then increase down the group
- Decreases down the group
- Remains constant
Question’s Answer: Decreases down the group
Which compound is formed when S is boiled with Na2SO3 solution?
- Na2S2O3
- Na2SO4
- Na2S2O8
- Na2S
Question’s Answer: Na2S2O3
What is the final acid gained during the manufacturing of sulfuric acid is
- Con. H2SO4
- H2S2O7
- Dil. H2SO4
- H2S2O6
Question’s Answer: H2S2O7
Which of the mentioned is wrong?
- H2O2 is a planar molecule
- Water is more polar than Hâ‚‚S
- Heavy water is produced by the exhaustive electrolysis of water made acidic
- H2O2 acts both as oxidizing as well as reducing agent in acidic medium
Question’s Answer: H2O2 is a planar molecule
Oxalic acid when heated with conc. Hâ‚‚SO4 it gives out
- Hâ‚‚O and CO2
- Oxalic sulphate
- CO2 and H2S
- CO and COâ‚‚
Question’s Answer: CO and CO₂
Select the wrong statement for SO2
- It turns filter paper moistened with acidified K2Cr2O7
- It turns starch iodate paper blue
- It does not react with chlorine in presence of charcoal
- It decolorizes acidified KMnO4 solution
Question’s Answer It does not react with chlorine in presence of charcoal
B.P of heavy water is __________ .
- Equal to that of ordinary water
- Less than that of ordinary water
- Greater than that of ordinary water
- Equal to that of distilled water
Question’s Answer: Greater than that of ordinary water
Ozone is not ______.
- An allotrope
- A powerful oxidizing agent
- A bent molecule
- Paramagnetic
Question’s Answer: Paramagnetic
Which of the mentioned statements about the manufacture of H2SO4 by contact process is not true?
- S is burnt in air to form SO2
- SO2 is oxidized to SO3 in presence of V2O5 as catalyst (or finely divided spongy platinum as catalyst) at a pressure of 2 atom and a temperature of about 700 K
- SO3 is dissolved in H2O to get 100% H2SO4 acid
- H2SO4 gained by contact process is of higher purity than that gained by lead chamber process
Question’s Answer: SO3 is dissolved in H2O to get 100% H2SO4 acid
The hybridization of S in SO2 is
- sp
- sp3
- dsp2
- sp2
Question’s Answer: sp2
Which one of the following has the highest boiling point?
- Hâ‚‚S
- Hâ‚‚O
- Hâ‚‚Se
- Hâ‚‚Te
Question’s Answer :H₂O
Which of the mentioned compounds is most acidic?
- Hâ‚‚O
- Hâ‚‚S
- Hâ‚‚Te
- Hâ‚‚Se
Question’s Answer: H₂Te
Which of the mentioned represents the fuming sulphuric acid (oleum or pyrosulphuric acid)?
- H2S2O7
- H2S2O3
- Hâ‚‚Sâ‚‚O8
- H2S2O4
Question’s Answer:H2S2O7
Hypo is used in photography to
- Remove undecomposed silver bromide as soluble complex
- Remove silver as silver salt
- Reduce AgBr to metallic silver
- Remove reduced silver
Question’s Answer: Remove undecomposed silver bromide as soluble complex
Select the ideal conditions required for the manufacture of H2SO4 by contact process.
- Low temperature, high pressure and high concentration of reactants
- Low temperature, low concentration of reactants and low pressure
- High temperature, high pressure and high concentration of reactants
- Low temperature, low pressure and high concentration of reactants
Question’s Answer: Low temperature, high pressure and high concentration of reactants
Ozone is an important constituent of stratosphere, because it
- Prevents the formation of smog over large cities
- Remove poisonous gases of the atmosphere by reacting with them
- Destroys bacteria, which are harmful to human life.
- Absorbs ultraviolet radiation, which is harmful to human life
Question’s Answer: Absorbs ultraviolet radiation, which is harmful to human life
Which members of this group show the property of catenation?
- O and S
- S and Se
- O and Se
- O and Po
Question’s Answer: O and S
Which among the following is a false statement?
- SO3 is gained by the catalytic oxidation of SO2
- SO3 has trigonal planar geometry is gaseous state
- SO3 in gaseous state has all S-O bonds equivalent
- SO3 gas shows more solubility in water than in Hâ‚‚SO4
Question’s Answer:SO3 gas shows more solubility in water than in H₂SO4
The oxidation number of S in Hâ‚‚SO4 is
- +3
- +4
- +6
- +5
Question’s Answer:+6
Which of the mentioned is a thionic acid?
- H2S2O6
- H2S2O3
- H2S2O8
- H2S2O7
Question’s Answer: H2S2O6
Arrange the acidic tendencies of the following non-metallic oxides in decreasing order.
- SO3 > N2O5 > SiO2 > CO2 > Hâ‚‚O
- SO3 > N2O5> COâ‚‚ > SiO2 > Hâ‚‚O
- SO3 > SiO2 > N2O5 > COâ‚‚ > H2O
- SO3 > CO2 > N2O5 > SiO2 > Hâ‚‚O
Question’s Answer:SO3 > N2O5> CO₂ > SiO2 > H₂O
Which of the mentioned metals gives SO2 when treated with sulfuric acid?
- Ag
- Cu
- Both A & B
- None of A, B, and C
Question’s Answer: Both A & B
Which of the mentioned statement about SO2 is not true?
- It is liquid at room temperature
- It is typically basic oxid
- On heating it
- It is absorbed in con. sulfuric acid to give oleum
Question’s Answer: It is typically basic oxid
Which of the mentioned is a peroxy acid?
- Hâ‚‚S2O7
- H2S2O6
- H2SO4
- Hâ‚‚SO5
Question’s Answer: H₂SO5
Which of the mentioned statement is not true about the sulfuric acid?
- It shows acidic property
- It shows reducing property
- It shows dehydrating property
- It shows oxidizing property
Question’s Answer: It shows reducing property
What is the general formula of thionic acids?
- H6SnO2
- H3SnO6
- H2SnO6
- H2SnO5
Question’s Answer: H2SnO6
Which of the mentioned compound has O- O-linkage?
- H2S2O6
- H2S2O8
- H2S2O3
- H2S4O6
Question’s Answer: H2S2O8
Which of the mentioned compounds has peroxo-linkage?
- Hâ‚‚S4O6
- Hâ‚‚Sâ‚‚O5
- Hâ‚‚SO6
- Hâ‚‚Sâ‚‚Oâ‚‚
Question’s Answer: H₂SO6
Aqueous solution of H2O2 is acidic
- Strongly
- Weakly
- Basic
- Neutral
Question’s Answer: Weakly
Sulfuric acid reacts with PCl5 to give ________ .
- Thionyl chloride
- Sulfur teterachloride
- Sulfuryl chloride
- Sulfur monochloride
Question’s Answer: Sulfuryl chloride
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Hydrides of group 16 are weakly acidic in nature. The accurate order of acidity is
- Hâ‚‚O > Hâ‚‚S > Hâ‚‚Se > Hâ‚‚Te
- Hâ‚‚Te > Hâ‚‚O > Hâ‚‚S > Hâ‚‚Se
- Hâ‚‚Te > Hâ‚‚Se > Hâ‚‚O> Hâ‚‚S
- Hâ‚‚Te> H2Se > Hâ‚‚S > Hâ‚‚O
Question’s Answer: H₂Te> H2Se > H₂S > H₂O
Which of the mentioned compounds does not exist?
- SO2Cl2
- SCI6
- SCI4
- S2Cl2
Question’s Answer: SCI6
Which of the mentioned reactions is employed to produce ozone in the laboratory
- Exposure of air to UV light
- Reaction of F2 with H2O at low temperature
- Reaction of SO2 with H2O2
- Passage of silent electric discharge through oxygen
Question’s Answer: Passage of silent electric discharge through oxygen
More Inorganic Chemistry MCQs
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- Acids and Bases in inorganic chemistry MCQs
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- Carbon and Silicon MCQs
- Hydrogen, Alkali, and Alkaline Earth Metals MCQs
- D-Block Elements MCQs [Chemistry]
- F-Block Elements MCQs
- Halogens MCQs
- Inert Gases MCQs
- Nitrogen and Phosphorus MCQs
- Oxygen and Sulphur MCQs
- Experimental Inorganic Chemistry MCQs
- Periodic Classification Of Elements And Periodicity Of Properties MCQs
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