Hydrocarbons NEET Questions. We covered all the Hydrocarbons NEET Questions in this post for free so that you can practice well for the exam.
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MCQ on Hydrocarbons for NEET Students
Which of the following statements is NOT CORRECT?
(A) The thermite process is used to extract metals when their oxides cannot be reduced by carbon.
(B) In the Hall-Heroult process, with Al2O3 is mixed Na3AlF6 or CaF2 which melting lowers the point of mixture and conductivity. brings
(C) The purification of lead involves heating the impure lead on a sloping reverberatory hearth of the furnace above its melting point in the absence of air.
(D) Mond’s process for refining nickel involves heating nickel in a stream of carbon dioxide to form the volatile complex.
Option d – Mond’s process for refining nickel involves heating nickel in a stream of carbon dioxide to form the volatile complex.
Which of the following reduces cuprous oxide copper during the extraction of copper from its sulphide ore?
(A) Iron(II) sulphide
(B) Sulphur dioxide
(C) Copper(I) sulphide
(D) Copper monoxide
Option c – Copper(I) sulphide
In the electrometallurgy of aluminum, what will anode graphite rods which are used happen if are replaced by some other metal?
(A) O₂ liberated at the anode will react with the aluminum to give back Al2O3.
(B) No gas will be liberated at the anode.
(C) The process of electrometallurgy will become non-spontaneous.
(D) Al will be liberated at the anode.
Option a – O₂ liberated at the anode will react with the aluminum to give back Al2O3.
Which of the following is an antihistamine drug?
(A) Tetracycline
(B) Prontosil
(C) Foristal
(D) Vancomycin
Option c – Foristal
Which of the following statement is NOT CORRECT?
(A) Cassiterite and chromite are concentrated by hydraulic washing.
(B) Pure Al2O3 is obtained from the bauxite ore containing iron oxide as the main impurity by leaching it with a dilute solution of sodium cyanide.
(C) Aqueous NaOH and hydrogen gas are formed as byproducts during the extraction of chlorine from brine.
(D) Silver is extracted as an anionic complex during the extraction of silver by the leaching process.
Option b – Pure Al2O3 is obtained from the bauxite ore containing iron oxide as the main impurity by leaching it with a dilute solution of sodium cyanide.
Corrosion of the Taj Mahal by acid rain is due to the formation of ……….
(A) CaCO3
(B) Ca(OH)2
(C) CaSO4
(D) Ca(HCO3)2
Option c – CaSO4
The hydrometallurgical process of extraction of metals is based on ………
(A) complex formation
(B) hydrolysis
(C) dehydration
(D) dehydrogenation
Option a – complex formation
Which of the following statement is INCORRECT regarding soaps?
(A) In an acidic medium, soaps can easily remove oil and grease from fabric.
(B) They are insoluble in hard water.
(C) They can be oxidized by microorganisms present in sewage.
(D) Sodium rosinate enhances the lathering property of shaving soaps.
Option a – In an acidic medium, soaps can easily remove oil and grease from fabric.
Sodium cyanide is sometimes added in the froth floatation process as a depressant when the ore contains a mixture of ZnS and PbS because ………
(A) Pb(CN)2 gets precipitated without any effect on ZnS
(B) ZnS forms a soluble complex, Na₂[Zn(CN)4] while PbS forms the froth
(C) PbS forms a soluble complex, Na₂[Pb(CN)4] while ZnS forms froth
(D) Zn(CN)2 gets precipitated without any effect on PbS
Option b – ZnS forms a soluble complex, Na₂[Zn(CN)4] while PbS forms the froth
The bacteriostatic antibiotic among the following is ………
(A) penicillin
(B) aminoglycosides
(C) erythromycin
(D) ofloxacin
Option c – erythromycin
Which of the following oxide of nitrogen is a greenhouse gas?
(A) N₂O
(B) NO
(C) NO₂
(D) N₂O4
Option a – N₂O
Sulphide ore of silver is concentrated by which of the following method?
(A) Froth floatation
(B) Gravity separation
(C) Hydraulic washing
(D) MacArthur-Forrest process
Option d – MacArthur-Forrest process
N₂ and O₂ present in the air do not react with each other to form oxides of nitrogen at normal temperature because ……..
(A) they can combine only in the presence of a catalyst
(B) both N₂ and O₂ are unreactive
(C) the reaction is endothermic and requires a very high temperature
(D) oxides of nitrogen are unstable
Option c – the reaction is endothermic and requires a very high temperature
The concentration of fluoride, lead, nitrate, and iron in a water sample from an underground lake was found to be 1000 ppb, 55 ppb, 20 ppm, and 0.3 ppm, respectively. This water is unsuitable for drinking due to high concentration of ………
(A) fluoride and iron
(B) lead and fluoride
(C) nitrate and iron
(D) lead and iron
Option d – lead and iron
Which of the following diseases are caused due to SO₂? (i) Asthma (ii) Siderosis (iii) Bronchitis (iv) Emphysema
(A) Only (i), (ii), and (iii)
(B) Only (ii), (iii), and (iv)
(C) Only (i), (iii), and (iv)
(D) Only (i) and (iv)
Option c – Only (i), (iii), and (iv)
Which of the following statements is INCORRECT?
(A) Collectors enhance the non-wettability of mineral particles during froth floatation.
(B) A reverberatory furnace lined with magnetite is used to convert cast iron to wrought iron.
(C) In the van Arkel method of refining, the metal should form a volatile compound with the reagent.
(D) Copper from its low-grade ores is extracted by hydrometallurgy.
Option b – A reverberatory furnace lined with magnetite is used to convert cast iron to wrought iron.
On smelting with sand and coke, roasted copper pyrite produces which of the following products?
(A) Fe3(PO4)2 as infusible slag and Cu2S matte
(B) Ca3(PO4)2 as fusible slag and Cu₂S matte
(C) CaSiO3 as infusible slag and Cu₂0 matte
(D) FeSiO3 as fusible slag and Cu₂S matte
Option d – FeSiO3 as fusible slag and Cu₂S matte
Which of the following drug is effective against malaria?
(A) Phenacetin
(B) Primaquine
(C) Novalgin
(D) Terfenadine
Option b – Primaquine
Which of the following is INCORRECT? statements
(A) The impure zinc metal is used as an anode in the electrolytic refining of zinc.
(B) Acidified zinc sulphate electrolyte is used in the electrolytic refining of zinc.
(C) The reduction of zinc oxide by coke takes place at a lower temperature reduction than that of cuprous oxide by coke.
(D) Pure zinc metal is used as a cathode in the electrolytic refining of zinc.
Option c – The reduction of zinc oxide by coke takes place at a lower temperature reduction than that of cuprous oxide by coke.
Which of the following is responsible for both depletion of the ozone layer as well as the greenhouse effect?
(A) SO₂
(B) CO2
(C) CFCs
(D) NO₂
Option c – CFCs
Which of the following antibiotics contains a nitro group attached to the benzene ring in its structure?
(A) Chloramphenicol
(B) Penicillin
(C) Tetracycline
(D) Streptomycin
Option a – Chloramphenicol
Which component of photochemical smog inhibits Hill’s reaction of photosynthesis?
(A) Ozone
(B) PAN
(C) Formaldehyde
(D) Acrolein
Option b – PAN
The drug used as an antidepressant is ………
(A) terfenadine
(B) Nardil
(C) prontosil
(D) tetracycline
Option b – Nardil
Gallium arsenide is purified by ………
(A) polling
(B) van Arkel method
(C) zone refining method
(D) electrolytic refining method
Option c – zone refining method
Which of the following statements are TRUE about photochemical smog? (i) It occurs in a warm, dry, and sunny climate. (ii) It is formed from the action of sunlight on unsaturated hydrocarbons. (iii) It is called oxidizing smog. (iv) It contains a mixture of smoke, fog, and SO₂.
(A) Only (i), (ii) (iv)
(B) Only (ii), (iii) and (iv)
(C) Only (i), (ii) and (iii)
(D) Only (i) and (iii)
Option c – Only (i), (ii) and (iii)
Bauxite ore usually contains Al₂O, + SIO₂ + TiO₂ + Fe₂O₂. This one is treated with a concentrated solution of NaOH at 500 K and 35 bar pressure for a few hours and filtered hot. The species present in the filtrate is/are ………
(A) only NaAl(OH)4
(B) only Na₂Ti(OH)6
(C) both Na[Al(OH)4] and Na₂SiO3
(D) only Na₂SiO3
Option c – both Na[Al(OH)4] and Na₂SiO3
Equanil and meprobamate are tranquilizers that differ in ……….
(A) number of carbon atoms
(B) number of quaternary carbon atoms
(C) number of amine groups
(D) number of carbonyl groups
Option a – number of carbon atoms
Which one of the following statements is not TRUE?
(A) the pH of drinking water should be between 5.5-9.5.
(B) The concentration of DO below 4 ppm facilitates the growth of fish in water.
(C) Highly polluted water would have a BOD value of 17 ppm or more.
(D) The upper limit of nitrate in drinking water is about 50 ppm.
Option b – The concentration of DO below 4 ppm facilitates the growth of fish in water.
Which of the following drug is used to prevent platelet coagulation?
(A) Morphine
(B) Equanil
(C) Aspirin
(D) Prontosil
Option c – Aspirin
Which of the following extraction of metal does NOT require any reducing agent? ( Hydrocarbons NEET Questions )
(A) Iron from haematite
(B) Aluminium from bauxite
(C) Mercury from cinnabar
(D) Zinc from zinc blende
Option c – Mercury from cinnabar
Aspartame is an artificial sweetener having ………. as the functional groups. ( Hydrocarbons NEET Questions )
(A) ester, peptide, amino, carboxyl
(B) hydroxy, keto, methoxy
(C) ester, peptide, keto, amino
(D) hydroxy, keto, ester
Option a – ester, peptide, amino, carboxyl
About 20 km above the surface of the earth there is an ozone layer. Which one of the following statements about ozone is TRUE?
(A) Ozone is thermodynamically unstable and decomposes to molecular oxygen.
(B) CFCs have no effect on the ozone layer.
(C) Ozone is a triatomic linear molecule.
(D) The ozone layer is harmful to us because it filters out radiation useful for photosynthesis.
Option a – Ozone is thermodynamically unstable and decomposes to molecular oxygen.
Which of the following possess (N= N) linkage in their structure? ( Hydrocarbons NEET Questions )
(A) Prontosil and azodye
(B) Salvarsan and prontosil
(C) Azodye and salvarsan
(D) Only protonsil
Option a – Prontosil and azodye
We covered all the hydrocarbons neet questions above in this post for free so that you can practice well for the exam.
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