In the manufacture of sulphuric acid from elemental sulphur, the following sequence of major operations is followed: (A) Furnace → converter → absorber (B) Furnace → evaporator → absorber (C) Furnace → converter → evaporator (D) Converter → furnace → absorber

In the manufacture of sulphuric acid from elemental sulphur, the
following sequence of major operations is followed:
(A) Furnace → converter → absorber
(B) Furnace → evaporator → absorber
(C) Furnace → converter → evaporator
(D) Converter → furnace → absorber
by

1 Answer

Answer :

(A) Furnace → converter → absorber
by

Related questions

Contact process of sulphuric acid manufacture (A) Yields acid of higher concentration than chamber process (B) Yields acids of lower concentration than chamber process (C) Is obsolete (D) Eliminates absorber

Description : Contact process of sulphuric acid manufacture (A) Yields acid of higher concentration than chamber process (B) Yields acids of lower concentration than chamber process (C) Is obsolete (D) Eliminates absorber

Last Answer : (A) Yields acid of higher concentration than chamber process

Pick out the wrong statement. (A) 'Green acid' is the other name of phosphoric acid produced by the reaction of phosphate rock & sulphuric acid (B) Chemically unreactive nature of red phosphorous is due to its polymeric structure (C) Red phosphorous is the most reactive allotropic form of phosphorous (D) Red phosphorous, which is used in the manufacture of safety matches, is converted into white phosphorous by vaporisation followed by condensation

Description : Pick out the wrong statement. (A) 'Green acid' is the other name of phosphoric acid produced by the reaction of phosphate rock & sulphuric acid (B) Chemically unreactive nature of ... in the manufacture of safety matches, is converted into white phosphorous by vaporisation followed by condensation

Last Answer : (C) Red phosphorous is the most reactive allotropic form of phosphorous

Pick out the wrong statement. (A) Conversion of SO2 to SO3 in Monsanto-4 pass converter is about 98% (B) The chemical formula of oleum is H2S2O7 , which is formed by saturating sulphuric acid with sulphur trioxide (C) Vitriol oil is nothing but technical sulphuric acid (D) Decomposition of sulphuric acid on heating does not start before its boiling

Description : Pick out the wrong statement. (A) Conversion of SO2 to SO3 in Monsanto-4 pass converter is about 98% (B) The chemical formula of oleum is H2S2O7 , which is formed by saturating ... but technical sulphuric acid (D) Decomposition of sulphuric acid on heating does not start before its boiling

Last Answer : (D) Decomposition of sulphuric acid on heating does not start before its boiling

During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond 160°C, as (A) It is very corrosive at elevated temperature (B) Its viscosity is not reduced on further heating (hence pressure drop on pumping it, cannot be further reduced) (C) It decomposes on further increasing the temperature (D) None of these

Description : During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond 160°C, as (A) It is very corrosive at elevated temperature (B) Its viscosity is not reduced on ... be further reduced) (C) It decomposes on further increasing the temperature (D) None of these

Last Answer : (B) Its viscosity is not reduced on further heating (hence pressure drop on pumping it, cannot be further reduced)

Black liquor generated during paper manufacture is concentrated in a (A) Single effect evaporator (B) Single effect evaporator followed by a crystalliser (C) Multiple effect evaporator (D) Multiple effect evaporators followed by a crystalliser

Description : Black liquor generated during paper manufacture is concentrated in a (A) Single effect evaporator (B) Single effect evaporator followed by a crystalliser (C) Multiple effect evaporator (D) Multiple effect evaporators followed by a crystalliser

Last Answer : (C) Multiple effect evaporator

Fusion zone in the electric furnace used for reduction of phosphate rock to elemental phosphorous is maintained at __________ °C. (A) 250-300 (B) 500-750 (C) 950-1050 (D) 1400-1450

Description : Fusion zone in the electric furnace used for reduction of phosphate rock to elemental phosphorous is maintained at __________ °C. (A) 250-300 (B) 500-750 (C) 950-1050 (D) 1400-1450

Last Answer : (D) 1400-1450

Write balanced chemical equations for the following word equations: (a) Iron + Chlorine → Iron (III) chloride (b) Magnesium + dil sulphuric acid → Magnesium sulphate + water (c) Magnesium + oxygen → Magnesium oxide (d) Calcium oxide + water → Calcium hydroxide (e) Sodium + chlorine → Sodium chloride

Description : Write balanced chemical equations for the following word equations: (a) Iron + Chlorine → Iron (III) chloride (b) Magnesium + dil sulphuric acid → Magnesium sulphate + water (c) Magnesium + oxygen → ... oxide (d) Calcium oxide + water → Calcium hydroxide (e) Sodium + chlorine → Sodium chloride

Last Answer : (a) Iron + Chlorine → Iron (III) chloride 4Fe + 3Cl2 → 2F2Cl3 (b) Magnesium + dil sulphuric acid → Magnesium sulphate + water 2Mg + 2H2SO4 → 2MgSO4 + 2H2 (c) Magnesium + oxygen → Magnesium oxide 2Mg ... hydroxide CaO + H2O → Ca(OH)2 (e) Sodium + chlorine → Sodium chloride 2Na + Cl2 → 2NaCl

Cooling water is required for following equipment in ammonia absorption plant (a) condenser (b) evaporator (c) condenser and absorber (d) condenser, absorber and separator (rectifier).

Description : Cooling water is required for following equipment in ammonia absorption plant (a) condenser (b) evaporator (c) condenser and absorber (d) condenser, absorber and separator (rectifier).

Last Answer : Ans: d

The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is (A) Alumina (B) Silica gel(C) Platinum(D) Nickel

Description : The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is (A) Alumina (B) Silica gel (C) Platinum (D) Nickel

Last Answer : (A) Alumina

In the Contact process of sulphuric acid manufacture, 98% acid cooler is made of (A) Stainless steel (B) Cast iron (C) Lead lined steel (D) Rubber lined steel

Description : In the Contact process of sulphuric acid manufacture, 98% acid cooler is made of (A) Stainless steel (B) Cast iron (C) Lead lined steel (D) Rubber lined steel

Last Answer : (B) Cast iron

In chamber process of sulphuric acid manufacture in industry, the gas phase oxidation of SO2 to SO3 is accomplished by a __________ reaction. (A) Non-catalytic homogeneous (B) Non-catalytic heterogeneous (C) Catalytic homogenous (D) Catalytic heterogeneous

Description : In chamber process of sulphuric acid manufacture in industry, the gas phase oxidation of SO2 to SO3 is accomplished by a __________ reaction. (A) Non-catalytic homogeneous (B) Non-catalytic heterogeneous (C) Catalytic homogenous (D) Catalytic heterogeneous

Last Answer : (C) Catalytic homogenous

Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the (A) Fertiliser manufacture (B) Car battery solution (C) Synthesis of oleum (D) Water treatment

Description : Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the (A) Fertiliser manufacture (B) Car battery solution (C) Synthesis of oleum (D) Water treatment

Last Answer : (B) Car battery solution

Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively (A) V2O5 & Cr2O3 . (B) Oxides of nitrogen & Cr2O3 (C) V2O5 on a porous carrier & oxides of nitrogen (D) Oxides of nitrogen & V2O5 on a porous carrier

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Last Answer : (D) Oxides of nitrogen & V2O5 on a porous carrier

Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled explosive called dynamite. The raw material used for its manufacture are glycerine, nitric acid and (A) Sulphuric acid (B) Phosphoric acid (C) Hydrochloric acid (D) Hydrofluoric acid

Description : Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled explosive called dynamite. The raw material used for its manufacture are glycerine, nitric acid and (A) Sulphuric acid (B) Phosphoric acid (C) Hydrochloric acid (D) Hydrofluoric acid

Last Answer : (A) Sulphuric acid

Pick out the wrong statement. (A) Chamber process of sulphuric acid manufacture produces pure acid of concentration < 80% (B) Contact process of sulphuric acid manufacture produces pure acid of concentration ≥ 98% (C) 75% oleum can be produced by distillation of 20% oleum (D) Contact process of sulphuric acid manufacture uses nickel as the catalyst

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Last Answer : (D) Contact process of sulphuric acid manufacture uses nickel as the catalyst

. Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like (A) High cost (B) Fragile nature (C) Easy poiso(D) All (A), (B) and (C)ning tendency

Description : . Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like (A) High cost (B) Fragile nature (C) Easy poisoning tendency (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of (A) Nitric acid (B) Sulphuric acid (C) Ammonium sulphate (D) Hydrochloric acid

Description : Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of (A) Nitric acid (B) Sulphuric acid (C) Ammonium sulphate (D) Hydrochloric acid

Last Answer : (B) Sulphuric acid

Uranium is recovered from its ore (pitchblende) by (A) Froth floatation technique (B) Leaching with sulphuric acid (C) Smelting in a furnace (D) Dissolving in water

Description : Uranium is recovered from its ore (pitchblende) by (A) Froth floatation technique (B) Leaching with sulphuric acid (C) Smelting in a furnace (D) Dissolving in water

Last Answer : (B) Leaching with sulphuric acid

Electric furnace method for production of phosphorous uses phosphate rock and __________ (A) Phosphoric acid (B) Coke (C) Sulphuric acid (D) Silica and coke

Description : Electric furnace method for production of phosphorous uses phosphate rock and __________ (A) Phosphoric acid (B) Coke (C) Sulphuric acid (D) Silica and coke

Last Answer : (D) Silica and coke

Assertion: Reaction of `SO_(2)` and `H_(2)S` in the presence of `Fe_(2)O_(3)` catalyst gives elemental sulphur. Reason: `SO_(2)` is a reducing agent.

Description : Assertion: Reaction of `SO_(2)` and `H_(2)S` in the presence of `Fe_(2)O_(3)` catalyst gives elemental sulphur. Reason: `SO_(2)` is a reducing agent.

Last Answer : Assertion: Reaction of `SO_(2)` and `H_(2)S` in the presence of `Fe_(2)O_(3)` catalyst gives ... is False. D. If both Assertion & Reason are False.

Sulphur can be utilized by bacteria in the form of a. Organic compounds b. Inorganic compounds c. Elemental compounds d. All of the above

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Last Answer : Ans: A

Which of the following is not an example of elemental solid dielectric? a) Diamond b) Sulphur c) Silicon d) Germanium

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Last Answer : c) Silicon

Sulphur melting pit in the sulphuric acid plant is made of (A) Lead lined stainless steel (B) Cast iron (C) Steel or cement-brick lined (D) Hard wood

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Last Answer : (C) Steel or cement-brick lined

Polythene (low or high density) containers are not corroded by (A) Sulphuric acid (10%) at room temperature (B) Nitric acid (95%) at room temperature (C) Sulphur trioxide at 60°C (D) Any of these

Description : Polythene (low or high density) containers are not corroded by (A) Sulphuric acid (10%) at room temperature (B) Nitric acid (95%) at room temperature (C) Sulphur trioxide at 60°C (D) Any of these

Last Answer : (A) Sulphuric acid (10%) at room temperature

Sulphuric acid completely saturated with sulphur trioxide is called (A) Concentrated sulphuric acid (B) Oleum (C) Sulphurous acid (D) Dilute sulphuric acid

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Last Answer : (A) Concentrated sulphuric acid

15 mL of water and 10 mL of sulphuric acid are to be mixed in a beaker (i) State the method that should be followed with reason. (ii)What is this process called? -Chemistry

Description : 15 mL of water and 10 mL of sulphuric acid are to be mixed in a beaker (i) State the method that should be followed with reason. (ii)What is this process called? -Chemistry

Last Answer : (i) The acid is to be added slowly in water to prevent the mixture to be splashed. The reaction is highly exothermic, therefore, constant cooling should be done. (ii)The process is called dilution.

The catalyst used in the manufacture of sulphuric acid by contact process is `:

Description : The catalyst used in the manufacture of sulphuric acid by contact process is `:

Last Answer : The catalyst used in the manufacture of sulphuric acid by contact process is `: A. `Al_(2)O_(3)` B. `Cr_(2)O_(3)` C. `V_(2)O_(5)` D. `Mn_(3)O_(4)`

The contact process is involved in the manufacture of - (1) Nitric acid (2) Sulphuric acid (3) Ammonia (4) Caustic soda

Description : The contact process is involved in the manufacture of - (1) Nitric acid (2) Sulphuric acid (3) Ammonia (4) Caustic soda

Last Answer : (2) Sulphuric acid Explanation: It is also a central substance in the chemical industry. It is widely produced by contact process. Now days, sulphuric acid is prepared by contact process all over ... process is based upon the catalytic oxidation of sulfur dioxide (SO2) to sulfur trioxide (SO3).

Apply the Physico – Chemical principle in the manufacture of Sulphuric acid by contact process.

Description : Apply the Physico – Chemical principle in the manufacture of Sulphuric acid by contact process. 

Last Answer : Physico-Chemical principles in sulfuric acid production Temperature Sulfur dioxide and oxygen then react as follows: According to the Le Chatelier's principle, a lower temperature should be ... 1 : 1 mixture turns out to give you the best possible overall yield of sulphur trioxide. 

In the manufacture of H3 PO4 (ortho); strong H2 SO4 leaching wet process as compared to electric furnace process (A) Uses lower grade phosphate rock (B) Requires lower capital investment in the plant(C) Produces lower purity acid(D) Is very costly

Description : In the manufacture of H3 PO4 (ortho); strong H2 SO4 leaching wet process as compared to electric furnace process (A) Uses lower grade phosphate rock (B) Requires lower capital investment in the plant (C) Produces lower purity acid (D) Is very costly

Last Answer : (C) Produces lower purity acid

Mannheim furnace is used in the manufacture of (A) Hydrochloric acid (B) H2SO4 by Chamber process (C) Calcium carbide (D) Corundum

Description : Mannheim furnace is used in the manufacture of (A) Hydrochloric acid (B) H2SO4 by Chamber process (C) Calcium carbide (D) Corundum

Last Answer : (A) Hydrochloric acid

The major use of sulphur is in the manufacture of – (1) H2SO4 (2) H2S (3) SO2 (4) Fungicide

Description : The major use of sulphur is in the manufacture of – (1) H2SO4 (2) H2S (3) SO2 (4) Fungicide

Last Answer : (1) H2SO4 Explanation: The major use of sulphur is in the manufacture of sulphuric acid (H2SO4) which is one of the most important compounds made by the chemical industry. It is used to make, literally, hundreds of compounds needed by almost every industry.

Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of (A) Phosphoric acid (B) Superphosphate (C) Phosphorous (D) Triple superphosphate

Description : Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of (A) Phosphoric acid (B) Superphosphate (C) Phosphorous (D) Triple superphosphate

Last Answer : (C) Phosphorous

In the converter of the contact process for the manufacture of H2SO4 the equilibrium conversion of SO2__________ (i) __________ with increase in temperature and __________ (ii) __________ with increase in the mole ratio of SO2 to air. (A) (i) increases (ii) decreases (B) (i) decreases (ii) increases (C) (i) increases (ii) increases (D) (i) decreases (ii) decreases

Description : In the converter of the contact process for the manufacture of H2SO4 the equilibrium conversion of SO2__________ (i) __________ with increase in temperature and __________ (ii) __________ with increase in the mole ratio ... increases (C) (i) increases (ii) increases (D) (i) decreases (ii) decreases

Last Answer : (B) (i) decreases (ii) increases

Which furnace employs natural draft? (A) Coke oven (B) Boiler (C) Rotary kilns (D) L.D. converter

Description : Which furnace employs natural draft? (A) Coke oven (B) Boiler (C) Rotary kilns (D) L.D. converter

Last Answer : (A) Coke oven

Reducing atmosphere is maintained in a (A) Calcination kiln (B) Blast furnace (C) Soaking pit (D) L.D. converter

Description : Reducing atmosphere is maintained in a (A) Calcination kiln (B) Blast furnace (C) Soaking pit (D) L.D. converter

Last Answer : (B) Blast furnace

An example of shaft furnace is the (A) L.D. converter (B) Glass melting tank (C) Blast furnace (D) Soaking pit

Description : An example of shaft furnace is the (A) L.D. converter (B) Glass melting tank (C) Blast furnace (D) Soaking pit

Last Answer : (C) Blast furnace

Which of the following gaseous fuels has the lowest calorific value? (A) Gobar gas (B) Refinery gas (C) Converter gas (D) Blast furnace gas

Description : Which of the following gaseous fuels has the lowest calorific value? (A) Gobar gas (B) Refinery gas (C) Converter gas (D) Blast furnace gas

Last Answer : (D) Blast furnace gas

Gross & net calorific value is the same for (A) Blast furnace gas (B) Coke oven gas (C) L.D. converter gas (D) None of these

Description : Gross & net calorific value is the same for (A) Blast furnace gas (B) Coke oven gas (C) L.D. converter gas (D) None of these

Last Answer : (C) L.D. converter gas

Mixed gas' used in steel plants is a mixture of (A) B.F. gas and coke oven gas (B) Coke oven gas and converter gas (C) Coke oven gas and L.P.G (D) Blast furnace gas and naphtha vapor

Description : Mixed gas' used in steel plants is a mixture of (A) B.F. gas and coke oven gas (B) Coke oven gas and converter gas (C) Coke oven gas and L.P.G (D) Blast furnace gas and naphtha vapor

Last Answer : (A) B.F. gas and coke oven gas

Which of the following fuels is generally not used in thermal power plant boiler firing? (A) Furnace oil, light diesel oil and tar/PCM (B) Pulverised coking coal (C) Coal middling from washeries (D) B.F. gas, coke oven gas and L.D. converter gas

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Last Answer : (B) Pulverised coking coal

Which of the following is the most poisonous gas? (A) Coke oven gas(B) Producer gas(C) Blast furnace gas(D) L.D. converter gas

Description : Which of the following is the most poisonous gas? (A) Coke oven gas (B) Producer gas (C) Blast furnace gas (D) L.D. converter gas

Last Answer : (D) L.D. converter gas

Refractory bricks having high thermal conductivity is desirable, when it is to be used in the (A) L.D. converter (B) Blast furnace (C) Rotary kiln (D) Recuperator

Description : Refractory bricks having high thermal conductivity is desirable, when it is to be used in the (A) L.D. converter (B) Blast furnace (C) Rotary kiln (D) Recuperator

Last Answer : (D) Recuperator

. Which of the following fuel gases contains maximum amount of carbon monoxide? (A) Coke oven gas (B) Water gas (C) Blast furnace gas (D) L.D. converter gas

Description : . Which of the following fuel gases contains maximum amount of carbon monoxide? (A) Coke oven gas (B) Water gas (C) Blast furnace gas (D) L.D. converter gas

Last Answer : (D) L.D. converter gas

Pick out the wrong statement. (A) Catalytic converter is fitted in automobiles to reduce carbon monoxide concentration in exhaust emissions (B) Inhalation of pollutant carbon monoxide results in death by asphyxiation (C) Sulphur dioxide is the main pollutant emitted from the exhaust of petrol driven automobiles (D) Decomposition of plants containing chlorophyll is a natural source of carbon monoxide in atmosphere

Description : Pick out the wrong statement. (A) Catalytic converter is fitted in automobiles to reduce carbon monoxide concentration in exhaust emissions (B) Inhalation of pollutant carbon monoxide results ... D) Decomposition of plants containing chlorophyll is a natural source of carbon monoxide in atmosphere

Last Answer : (C) Sulphur dioxide is the main pollutant emitted from the exhaust of petrol driven automobiles

The correct sequence of plants in a hydrosere is (a) Volvox → Hydrilla → Pistia → Scirpus → Lantana → Oak (b) Pistia → Volvox → Scirpus → Hydrilla → Oak → Lantana (c) Oak → Lantana → Volvox → Hydrilla → Pistia → Scirpus (d) Oak → Lantana → Scirpus → Pistia → Hydrilla → Volvox.

Description : The correct sequence of plants in a hydrosere is (a) Volvox → Hydrilla → Pistia → Scirpus → Lantana → Oak (b) Pistia → Volvox → Scirpus → Hydrilla → Oak → Lantana (c) Oak → Lantana → Volvox → Hydrilla → Pistia → Scirpus (d) Oak → Lantana → Scirpus → Pistia → Hydrilla → Volvox.

Last Answer : (a) Volvox → Hydrilla → Pistia → Scirpus → Lantana → Oak

Select the correct sequence for transport of sperm cells in male reproductive system. (a) Testis → Epididymis → Vasa efferentia → Vas deferens → Ejaculatory duct → Inguinal canal → Urethra → Urethral meatus (b) Testis → Epididymis → Vasa efferentia → Rete testis → Inguinal canal → Urethra (c) Seminiferous tubules → Rete testis → Vasa efferentia → Epididymis → Vas deferens → Ejaculatory duct → Urethra → Urethral meatus (d) Seminiferous tubules → Vasa efferentia → Epididymis → Inguinal canal → Urethra

Description : Select the correct sequence for transport of sperm cells in male reproductive system. (a) Testis → Epididymis → Vasa efferentia → Vas deferens → Ejaculatory duct → Inguinal canal → Urethra → ... → Urethral meatus (d) Seminiferous tubules → Vasa efferentia → Epididymis → Inguinal canal → Urethra

Last Answer : (c) Seminiferous tubules → Rete testis → Vasa efferentia → Epididymis → Vas deferens → Ejaculatory duct → Urethra → Urethral meatus

Which of the following options gives the correct sequence of events during mitosis ? (a) Condensation → Nuclear membrane disassembly → Arrangement at equator → Centromere division → Segregation → Telophase (b) Condensation → Crossing over → Nuclear membrane disassembly → Segregation → Telophase (c) Condensation → Arrangement at equator → Centromere division → Segregation → Telophase (d) Condensation → Nuclear membrane disassembly → Crossing over → Segregation → Telophase

Description : Which of the following options gives the correct sequence of events during mitosis ? (a) Condensation → Nuclear membrane disassembly → Arrangement at equator → Centromere division → Segregation ... (d) Condensation → Nuclear membrane disassembly → Crossing over → Segregation → Telophase

Last Answer : (a) Condensation → Nuclear membrane disassembly → Arrangement at equator → Centromere division → Segregation → Telophase

The correct sequence of phases of cell cycle is (a) G1 → S → G2 → M (b) M → G1 → G2 → S (c) G1 → G2 → S → M (d) S → G1 → G2 → M.

Description : The correct sequence of phases of cell cycle is (a) G1 → S → G2 → M (b) M → G1 → G2 → S (c) G1 → G2 → S → M (d) S → G1 → G2 → M.

Last Answer : (a) G1 → S → G2 → M

Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth. (a) Pharynx → Oesophagus → Ileum → Crop → Gizzard → Colon → Rectum (b) Pharynx → Oesophagus → Crop → Gizzard → Ileum → Colon → Rectum (c) Pharynx → Oesophagus → Gizzard → Crop → Ileum → Colon → Rectum (d) Pharynx → Oesophagus → Gizzard → Ileum → Crop → Colon → Rectum

Description : Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth. (a) Pharynx → Oesophagus → Ileum → Crop → Gizzard → Colon → Rectum (b) Pharynx → Oesophagus → Crop → Gizzard ... Ileum → Colon → Rectum (d) Pharynx → Oesophagus → Gizzard → Ileum → Crop → Colon → Rectum

Last Answer : (b) Pharynx → Oesophagus → Crop → Gizzard → Ileum → Colon → Rectum