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Jeevith Publication Class 11 Chemistry PDF. We provided the Jeevith Publication Class 11 Chemistry PDF in this post for free so that you can practice well for the exam.
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Jeevith Publication Class 11 Chemistry PDF for Students
Approximately what fraction of the Earth’s Atmosphere is made up of nitrogen?
(A) About 10–11%
(B) Roughly 18–20%
(C) Nearly 40–42%
(D) Close to 78–79%
Option d – Close to 78–79%
Which of the following does not participate in a gaseous biogeochemical cycle?
(A) Nitrogen
(B) Oxygen
(C) Carbon
(D) Hydrogen
Option d – Hydrogen
Which gas belongs to the noble gases group?
(A) Hydrogen
(B) Oxygen
(C) Helium
(D) Carbon dioxide
Option c – Helium
By volume, which atmospheric gas is present in the smallest amount among the following?
(A) Argon
(B) Carbon dioxide
(C) Nitrogen
(D) Oxygen
Option b – Carbon dioxide
For breathing under deep-sea conditions, which gas is mixed with oxygen?
(A) Helium
(B) Nitrogen
(C) Xenon
(D) Ammonia
Option a – Helium
Which gas combination is commonly used for deep-sea diving?
(A) Helium with oxygen
(B) Helium with nitrogen
(C) Oxygen with acetylene
(D) Oxygen with hydrogen
Option a – Helium with oxygen
What Molecular geometry does sulphur hexafluoride exhibit?
(A) Trigonal pyramidal
(B) Octahedral
(C) Planar
(D) Tetrahedral
Option b – Octahedral
Which of the following substances dissolves readily in water?
(A) Nitrogen
(B) Carbon dioxide
(C) Hydrogen
(D) Iodine
Option c – Hydrogen
Which gas is popularly referred to as laughing gas?
(A) Nitrous oxide
(B) Nitrogen dioxide
(C) Nitrogen trioxide
(D) Nitrogen tetroxide
Option a – Nitrous oxide
Which gas is also known by the name “stranger gas”?
(A) Argon
(B) Neon
(C) Xenon
(D) Nitrous oxide
Option c – Xenon
Which pair given below is incorrectly matched?
(A) Bordeaux mixture – Copper sulphate and calcium hydroxide, used as a fungicide
(B) Boric Acid – Used in medicines and as a Food preservative
(C) Dry ice – Solid form of carbon dioxide
(D) Nitric oxide – Laughing gas
Option d – Nitric oxide – Laughing gas
Electrical discharge of nitrogen results in
(A) An increase in nitrogen content of the Atmosphere
(B) An increase of nitrogen in the lithosphere
(C) No overall change in nitrogen of the Atmosphere and lithosphere
(D) Destruction of nitrate-forming bacteria
Option c – No overall change in nitrogen of the Atmosphere and lithosphere
Which gas is used for filling aircraft tyres?
(A) Hydrogen
(B) Nitrogen
(C) Helium
(D) Neon
Option b – Nitrogen
Insectivorous plants capture insects mainly to overcome the lack of
(A) Manganese
(B) Nitrogen
(C) Magnesium
(D) Sulphur
Option b – Nitrogen
The soil where insectivorous plants commonly grow is deficient in
(A) Magnesium
(B) Calcium
(C) Nitrogen
(D) Water
Option c – Nitrogen
Which gas is generally used to fill balloons?
(A) Hydrogen
(B) Oxygen
(C) Carbon dioxide
(D) Helium
Option d – Helium
Helium is chosen over hydrogen for air balloons because it
(A) Costs less
(B) Has lower density
(C) Provides greater lift
(D) Does not form explosive mixtures with air
Option d – Does not form explosive mixtures with air
Tear gas refers to
(A) Ammonia
(B) Chlorine
(C) Hydrogen cyanide
(D) Hydrogen sulphide
Option a – Ammonia
Which of the following gases is used as tear gas?
(A) Hydrogen
(B) Sulphur dioxide
(C) Ammonia
(D) Chlorine
Option c – Ammonia
The unpleasant odour of decaying fish is mainly due to
(A) Amino compounds
(B) Aldehyde compounds
(C) Sulphur-containing compounds
(D) Nitro compounds
Option a – Amino compounds
Which of the following exists as a Solid under normal room conditions?
(A) Chlorine
(B) Bromine
(C) Iodine
(D) Fluorine
Option c – Iodine
Which of the following amino Acids is not optically active?
(A) Glycine
(B) Alanine
(C) Serine
(D) All of these
Option a – Glycine
Which halogen shows the highest chemical reactivity?
(A) Fluorine
(B) Chlorine
(C) Bromine
(D) Iodine
Option a – Fluorine
Which halogen is associated with analgesic use?
(A) Chlorine
(B) Bromine
(C) Iodine
(D) Fluorine
Option b – Bromine
Which gas is present at low pressure inside a tube Light?
(A) Argon and neon
(B) Neon and mercury vapour
(C) Nitrogen and neon
(D) Only argon
Option b – Neon and mercury vapour
A tube Light mainly contains
(A) Sodium vapour
(B) Argon gas at low pressure
(C) Mercury vapour at low pressure
(D) Both argon gas and mercury vapour at low pressure
Option d – Both argon gas and mercury vapour at low pressure
Consider the following statements. 1. Dry sodium bicarbonate is popularly known as baking soda. 2. Baking soda finds application in fire extinguishers. 3. Bleaching powder is produced in the Hasenclever process. Which of the statements given above are correct?
(A) All three statements
(B) Only the second and third statements
(C) Only the third statement
(D) Only the first and second statements
Option b – Only the second and third statements
With reference to ionic compounds, examine the following statements. 1. Ionic compounds generally do not dissolve in Alcohol. 2. In their Solid form, ionic compounds conduct Electricity effectively. Which of the statements given above is/are correct?
(A) Only the first statement
(B) Only the second statement
(C) Both statements
(D) Neither statement
Option a – Only the first statement
Which element is fundamentally essential in all biological compounds?
(A) Sulphur
(B) Carbon
(C) Oxygen
(D) Nitrogen
Option b – Carbon
Which group of elements played a primary role in the origin of life on Earth?
(A) Hydrogen, Oxygen, Sodium
(B) Carbon, Hydrogen, Nitrogen
(C) Oxygen, Calcium, Phosphorus
(D) Carbon, Hydrogen, Potassium
Option b – Carbon, Hydrogen, Nitrogen
Under laboratory-simulated early Earth conditions, which sequence correctly represents the formation of compounds?
(A) Methane → Hydrogen cyanide → Nitrile → Amino Acid
(B) Hydrogen cyanide → Methane → Nitrile → Amino Acid
(C) Amino Acid → Nitrile → Hydrogen cyanide → Methane
(D) Nitrile → Amino Acid → Methane → Hydrogen cyanide
Option a – Methane → Hydrogen cyanide → Nitrile → Amino Acid
Which element forms the backbone of all Organic substances?
(A) Nitrogen
(B) Oxygen
(C) Carbon
(D) Brimstone
Option c – Carbon
Which of the following sequences correctly shows Hydrocarbons in increasing order of Molecular Mass?
(A) Methane, Ethane, Propane, Butane
(B) Propane, Butane, Ethane, Methane
(C) Butane, Ethane, Propane, Methane
(D) Butane, Propane, Ethane, Methane
Option a – Methane, Ethane, Propane, Butane
Which substance was employed as a chemical weapon during the First World War?
(A) Carbon monoxide
(B) Hydrogen cyanide
(C) Mustard gas
(D) Water gas
Option c – Mustard gas
Mustard gas is primarily used
(A) As a combustible fuel
(B) In chemical warfare
(C) For extracting mustard oil
(D) As a deodorising agent
Option b – In chemical warfare
In which physical state does poisonous mustard gas normally exist?
(A) Gaseous state
(B) Liquid state
(C) Solid state
(D) None of these
Option b – Liquid state
Which gas is commonly filled in cigarette lighters?
(A) Butane
(B) Methane
(C) Propane
(D) Radon
Option a – Butane
The Bhopal gas Disaster occurred due to the leakage of which gas?
(A) Methyl isocyanate
(B) Carbon monoxide
(C) Nitric oxide
(D) Sulphur dioxide
Option a – Methyl isocyanate
Acetylene is obtained by the decomposition of which substance?
(A) Acetylene itself
(B) Methane
(C) Carbon tetrachloride
(D) Benzene
Option b – Methane
Methane emission is mainly associated with which type of agricultural fields?
(A) Wheat fields
(B) Paddy fields
(C) Cotton fields
(D) Groundnut fields
Option b – Paddy fields
Which of the following statements correctly describes the Bonding in benzene?
(A) Six sigma bonds and six pi bonds
(B) Twelve sigma bonds and six pi bonds
(C) Twelve sigma bonds and three pi bonds
(D) Six sigma bonds and three pi bonds
Option c – Twelve sigma bonds and three pi bonds
Which catalyst is commonly used for the hydrogenation of vegetable oils?
(A) Zinc dust
(B) Nickel
(C) Platinum
(D) Copper
Option b – Nickel
Which chemical is used to induce artificial ripening of fruits?
(A) Ethephon
(B) Atrazine
(C) Isoproturon
(D) Malathion
Option a – Ethephon
Which of the following substances is widely used for fruit ripening?
(A) Sodium chloride
(B) Calcium carbide
(C) Potassium chloride
(D) None of the above
Option b – Calcium carbide
Which polymer is commonly applied as a non-stick coating on cookware?
(A) Polyvinyl chloride
(B) Teflon
(C) Polystyrene
(D) Polypropylene
Option b – Teflon
Teflon belongs to which category of compounds? ( Jeevith Publication Class 11 Chemistry PDF )
(A) Fluorocarbon
(B) Hydrocarbon
(C) Microbicide
(D) Insecticide
Option a – Fluorocarbon
The polymer Teflon is produced from which monomer? ( Jeevith Publication Class 11 Chemistry PDF )
(A) Tetrafluoroethylene
(B) Vinyl chloride
(C) Chloroprene
(D) Acetylene dichloride
Option a – Tetrafluoroethylene
Teflon is the popular name given to ( Jeevith Publication Class 11 Chemistry PDF )
(A) Polytetrafluoroethylene
(B) Polyvinyl chloride
(C) Polyvinyl fluoride
(D) Dichlorodifluoromethane
Option a – Polytetrafluoroethylene
Which material is used for glazing ceramic pottery? ( Jeevith Publication Class 11 Chemistry PDF )
(A) Alum
(B) Calomel
(C) Zinc chloride
(D) Zinc oxide
Option d – Zinc oxide
Which of the following is not classified as a polymer? ( Jeevith Publication Class 11 Chemistry PDF )
(A) Nylon
(B) Teflon
(C) Caprolactam
(D) Polystyrene
Option c – Caprolactam
Phenol is a raw material for the production of ( Jeevith Publication Class 11 Chemistry PDF )
(A) PVC
(B) Nylon
(C) Polystyrene
(D) Bakelite
Option d – Bakelite
Consider the following statements. 1. Teflon and Dacron are synthetic Polymers. 2. Neoprene is a type of synthetic rubber. 3. Polythene is another name for polyethylene. 4. Natural rubber is obtained from chloroprene. Which of the statements given above are correct? ( Jeevith Publication Class 11 Chemistry PDF )
(A) Only 1, 2 and 3
(B) Only 1, 2 and 4
(C) Only 2, 3 and 4
(D) Only 1, 3 and 4
Option a – Only 1, 2 and 3
The sour taste of lemon is due to the presence of ( Jeevith Publication Class 11 Chemistry PDF )
(A) Hydrochloric Acid
(B) Acetic Acid
(C) Tartaric Acid
(D) Citric Acid
Option d – Citric acid
Which acid gives lemons their characteristic sour taste? ( Jeevith Publication Class 11 Chemistry PDF )
(A) Acetic acid
(B) Ascorbic acid
(C) Citric acid
(D) Nitric acid
Option c – Citric acid
Muscle tiredness experienced after long periods of strenuous exercise occurs mainly because of ( Jeevith Publication Class 11 Chemistry PDF )
(A) Decreased availability of oxygen
(B) Slight injury to muscle fibres
(C) Exhaustion of glucose reserves
(D) Build-up of lactic acid
Option d – Build-up of lactic acid
Muscle fatigue is caused by the accumulation of which acid? ( Jeevith Publication Class 11 Chemistry PDF )
(A) Lactic acid
(B) Uric acid
(C) Oxalic acid
(D) Formic acid
Option a – Lactic acid
Which of the following pairs is incorrectly matched? ( Jeevith Publication Class 11 Chemistry PDF )
(A) Ascorbic acid – Lemon
(B) Maltose – Malt
(C) Acetic acid – Curd
(D) Formic acid – Red ant
Option c – Acetic acid – Curd
Which Organic acid occurs in large amounts in grapes, tamarind, and bananas? ( Jeevith Publication Class 11 Chemistry PDF )
(A) Acetic acid
(B) Citric acid
(C) Lactic acid
(D) Tartaric acid
Option d – Tartaric acid
Which acid finds application in photography? ( Jeevith Publication Class 11 Chemistry PDF )
(A) Formic acid
(B) Oxalic acid
(C) Citric acid
(D) Acetic acid
Option b – Oxalic acid
Which acid is used in the preparation of baking powder? ( Jeevith Publication Class 11 Chemistry PDF )
(A) Oxalic acid
(B) Lactic acid
(C) Tartaric acid
(D) Benzoic acid
Option c – Tartaric acid
Which acid is present in molasses? ( Jeevith Publication Class 11 Chemistry PDF )
(A) Oxalic acid
(B) Citric acid
(C) Hydrochloric acid
(D) Acetic acid
Option d – Acetic acid
Vinegar contains which acid? ( Jeevith Publication Class 11 Chemistry PDF )
(A) Lactic acid
(B) Citric acid
(C) Malic acid
(D) Acetic acid
Option d – Acetic acid
Chemically, vinegar is a solution of ( Jeevith Publication Class 11 Chemistry PDF )
(A) Acetic acid
(B) Butyric acid
(C) Formic acid
(D) Tartaric acid
Option a – Acetic acid
Consider the following statements. 1. Vinegar can be obtained by fermenting sugarcane juice. 2. Acetic acid is the main component of vinegar. 3. Vinegar contains benzoic acid. 4. Vinegar is used as a preservative. Which of the statements given above are correct? ( Jeevith Publication Class 11 Chemistry PDF )
(A) Only 1, 2 and 3
(B) Only 2, 3 and 4
(C) Only 1, 3 and 4
(D) Only 1, 2 and 4
Option a – Only 1, 2 and 3
Assertion: Formic acid is stronger than acetic acid. Reason: Formic acid belongs to the class of Organic Acids. Choose the correct option.
(A) Both statements are true and the reason correctly explains the assertion
(B) Both statements are true but the reason does not explain the assertion
(C) The assertion is true but the reason is false
(D) The assertion is false but the reason is true
Option b – Both statements are true but the reason does not explain the assertion
The explosive known as “Nobel Oil” is ( Jeevith Publication Class 11 Chemistry PDF )
(A) TNG
(B) TNP
(C) TNA
(D) TNT
Option a – TNG
RDX was invented by ( Jeevith Publication Class 11 Chemistry PDF )
(A) Alfred Nobel
(B) Soddy
(C) Bergillins
(D) Henning
Option d – Henning
We provided the Jeevith Publication Class 11 Chemistry PDF above in this post for free so that you can practice well for the exam.
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- 1st PUC Chemistry Previous Year Question Paper
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