Commercial Vaseline is derived from - (1) plant gums (2) coal tar (3) wool wax (4) petroleum

Commercial Vaseline is derived from - (1) plant gums (2) coal tar (3) wool wax (4) petroleum
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(4) petroleum Explanation: Vaseline is a brand of petroleum jelly based products owned by Anglo-Dutch company Unilever. While Vaseline can be used as a lubricant, it is also a useful moisture insulator for local skin conditions characterized by tissue dehydration. Vaseline helps protect minor cuts and burns.
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Commercial Vaseline is derived from (1) plant gums (2) coal tar (3) wool wax (4) petroleum

Description : Commercial Vaseline is derived from (1) plant gums (2) coal tar (3) wool wax (4) petroleum

Last Answer : petroleum

Coal tar fuels (CTF) as compared to petroleum based fuel oils have higher (A) Calorific value (B) Higher C/H ratio (C) Sulphur content (D) Difference in gross & net calorific value

Description : Coal tar fuels (CTF) as compared to petroleum based fuel oils have higher (A) Calorific value (B) Higher C/H ratio (C) Sulphur content (D) Difference in gross & net calorific value

Last Answer : (B) Higher C/H ratio

Dowtherm is a (A) High temperature heating medium (a petroleum product) (B) Product of coal tar distillation (C) Very heat sensitive material (D) None of these

Description : Dowtherm is a (A) High temperature heating medium (a petroleum product) (B) Product of coal tar distillation (C) Very heat sensitive material (D) None of these

Last Answer : Option A

Most commonly used solvent in oil paints, is (A) Petroleum (B) Spirit (C) Coal tar (D) Turpentine

Description : Most commonly used solvent in oil paints, is (A) Petroleum (B) Spirit (C) Coal tar (D) Turpentine

Last Answer : Answer: Option A

All the commercial liquid fuels are derived from natural petroleum (or crude oil).  A.True  B. False

Description : All the commercial liquid fuels are derived from natural petroleum (or crude oil).  A.True  B. False

Last Answer : Answer: A

Which of the following is not a commercial source of energy? (1) Coal (2) Petroleum (3) Natural Gas (4) Firewood

Description : Which of the following is not a commercial source of energy? (1) Coal (2) Petroleum (3) Natural Gas (4) Firewood

Last Answer : (4) Firewood Explanation: Firewood, agricultural waste (straw, etc.) and animals waste (cowdung) are the important components of non-commercial energy. It is generally used in the rural ... . Coal, petroleum products, natural gas and, electricity are the important components of commercial energy.

Which of the following is not a commercial source of energy? (1) Coal (2) Petroleum (3) Natural Gas (4) Firewood

Description : Which of the following is not a commercial source of energy? (1) Coal (2) Petroleum (3) Natural Gas (4) Firewood

Last Answer : Firewood

Which of the following is the most widely used heat insulating material for pipelines carrying steam? (A) Tar dolomite bricks followed by asbestos (B) Fireclay refractory followed by aluminium sheet (C) Cotton followed by aluminium foil (D) 85% magnesia cement and glass wool

Description : Which of the following is the most widely used heat insulating material for pipelines carrying steam? (A) Tar dolomite bricks followed by asbestos (B) Fireclay refractory followed by aluminium sheet (C) Cotton followed by aluminium foil (D) 85% magnesia cement and glass wool

Last Answer : (D) 85% magnesia cement and glass wool

Which of the following is the petroleum wax? (1) Bees wax (2) Carnauba wax (3) Paraffin wax (4) Jojoba wax

Description : Which of the following is the petroleum wax? (1) Bees wax (2) Carnauba wax (3) Paraffin wax (4) Jojoba wax

Last Answer : (3) Paraffin wax Explanation: Waxes are a class of chemical compounds that are plastic (malleable) near ambient temperatures. Characteristically, they melt above 45 °C, (113 °F) to give a ... in organic, non-polar solvents. All waxes are organic compounds, both synthetic and naturally occurring.

Which of the following is the petroleum wax ? (1) Bees wax (2) Carnauba wax (3) Paraffin wax (4) Jojoba wax

Description : Which of the following is the petroleum wax ? (1) Bees wax (2) Carnauba wax (3) Paraffin wax (4) Jojoba wax

Last Answer :  Paraffin wax

The catalytic cracking of heavier petroleum fraction is done to produce mainly (A) Gasoline (B) Asphalt (C) Diesel oil (D) Tar

Description : The catalytic cracking of heavier petroleum fraction is done to produce mainly (A) Gasoline (B) Asphalt (C) Diesel oil (D) Tar

Last Answer : (C) Diesel oil

Older crude petroleum (A) Is light and better (B) Gives more distillates (C) Gives less tar (D) All (A), (B) and (C)

Description : Older crude petroleum (A) Is light and better (B) Gives more distillates (C) Gives less tar (D) All (A), (B) and (C)

Last Answer : (B) Gives more distillates

Bitumen in (A) Solid state, is called asphalt (B) Semi fluid state, is called mineral tar (C) Fluid state, is called petroleum (D) All the above

Description : Bitumen in (A) Solid state, is called asphalt (B) Semi fluid state, is called mineral tar (C) Fluid state, is called petroleum (D) All the above

Last Answer : Answer: Option D

The chief source of naphthalene is - (1) Coal-tar (2) Diesel (3) Charcoal (4) Camphor

Description : The chief source of naphthalene is - (1) Coal-tar (2) Diesel (3) Charcoal (4) Camphor

Last Answer : (1) Coal-tar Explanation: Naphthalene is derived from a kind of naphtha which is a broad term encompassing any volatile, flammable liquid hydrocarbon mixture, including coal tar.

The main source of Naphthalene is - (1) Charcoal (2) Camphor (3) Coal-tar (4) Diesel

Description : The main source of Naphthalene is - (1) Charcoal (2) Camphor (3) Coal-tar (4) Diesel

Last Answer : (3) Coal-tar Explanation: The main source of Naphthalene is coal-tar. Naphthalene is derived from a kind of naphtha which is a broad term encompassing any volatile, namable liquid hydrocarbon mixture, including coaltar.

Which of the following fractions of coal-tar distillation contains naphthalene? (a) Light oil (b) Middle oil (c) Heavy oil (d) Anthracene oil

Description : Which of the following fractions of coal-tar distillation contains naphthalene? (a) Light oil (b) Middle oil (c) Heavy oil (d) Anthracene oil

Last Answer : Middle oil

Which of the following fractions of coal-tar distillation contains benzene? (a) Light oil (b) Middle oil (c) Heavy oil (d) Anthracene oil

Description : Which of the following fractions of coal-tar distillation contains benzene? (a) Light oil (b) Middle oil (c) Heavy oil (d) Anthracene oil

Last Answer : Light oil

Coal-tar is the main source of : (a) Aromatic compounds (b) Aliphatic compounds (c) Heterocyclic compounds (d) None of these

Description : Coal-tar is the main source of : (a) Aromatic compounds (b) Aliphatic compounds (c) Heterocyclic compounds (d) None of these

Last Answer : Aromatic compounds

The chief source of naphthalene is (1) Coal-tar (2) Diesel (3) Charcoal (4) Camphor

Description : The chief source of naphthalene is (1) Coal-tar (2) Diesel (3) Charcoal (4) Camphor

Last Answer : Coal-tar

The main source of Naphthalene is (1) Charcoal (2) Camphor (3) Coal-tar (4) Diesel

Description : The main source of Naphthalene is (1) Charcoal (2) Camphor (3) Coal-tar (4) Diesel

Last Answer : Coal-tar

(a) Leaves of a healthy potted plant were coated with vaseline to block the stomata. Will this plant remain healthy for long? State three reasons for your answer. (b) State any two differences between autotrophic nutrition and heterotrophic nutrition. -Biology

Description : (a) Leaves of a healthy potted plant were coated with vaseline to block the stomata. Will this plant remain healthy for long? State three reasons for your answer. (b) State any two differences between autotrophic nutrition and heterotrophic nutrition. -Biology

Last Answer : (a) No, this plant will not remain healthy for long. The plant will begin to die because (i) Gaseous exchange will not take place. (ii) No absorption of C02, hence no photosynthesis. (iii) Transpiration will not occur; hence no transportation of water.

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

Description : 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

Last Answer : (B) Pulverised coking coal

Petrolatum is (A) Same as petroleum ether (B) Petroleum coke (C) A mixture of microcrystalline wax in viscous hydrocarbon liquids (D) None of these

Description : Petrolatum is (A) Same as petroleum ether (B) Petroleum coke (C) A mixture of microcrystalline wax in viscous hydrocarbon liquids (D) None of these

Last Answer : (C) A mixture of microcrystalline wax in viscous hydrocarbon liquids

Sweetening of petroleum product means the removal of (A) Sulphur & its compounds (B) Water (C) Organic impurities (D) Wax

Description : Sweetening of petroleum product means the removal of (A) Sulphur & its compounds (B) Water (C) Organic impurities (D) Wax

Last Answer : (A) Sulphur & its compounds

_______ is one of the product formed during refining of petroleum which is black and sticky solid used for making roads. a) paraffin wax b)asphalt c)kerosene d) gasoline

Description : _______ is one of the product formed during refining of petroleum which is black and sticky solid used for making roads. a) paraffin wax b)asphalt c)kerosene d) gasoline

Last Answer : b)asphalt

Does vaseline have benefits ?

Description : Does vaseline have benefits ?

Last Answer : I personally would not use it on my face. I think it would coat and clog my pores instead of act as a moisturizer.

Does eating vaseline help you live longer?

Description : Does eating vaseline help you live longer?

Last Answer : Vaseline is made from petroleum products. I’d say, definitely no.

What are the uses of vaseline?

Description : What are the uses of vaseline?

Last Answer : dry skin babys bottom cream

Why do they cover your eyes with Vaseline before surgery?

Description : Why do they cover your eyes with Vaseline before surgery?

Last Answer : I would assume it keeps em from drying out, but ive never heard of such a thing.

What else can be used to keep skin healthy in winter except Vaseline ?

Description : What else can be used to keep skin healthy in winter except Vaseline ?

Last Answer : : Body lotion is Vaseline and Ponds. Since you will not take Vaseline, use Ponds.

Would it be better to give Meril on the lips or would it be better to give Vaseline ? Which is more beneficial ?

Description : Would it be better to give Meril on the lips or would it be better to give Vaseline ? Which is more beneficial ?

Last Answer : The benefits of both are the same. However, there is a lot of Vaseline that is not like petroleum jelly. That is, they are only and only the body is smeared on the hands and feet. It is ... the lips. You can use either petroleum jelly like Merrill or Vaseline for lip use. I will suggest Merrill.

The primary source of carbohydrates are – (1) Marine animals (2) Plants (3) Coal-tar (4) Crude oil

Description : The primary source of carbohydrates are – (1) Marine animals (2) Plants (3) Coal-tar (4) Crude oil

Last Answer : (2) Plants Explanation: Plants are the primary sources of carbohydrates. They produce carbohydrates by photosynthesis which is the source of energy for nearly all life on earth, either directly, through primary production, or indirectly, as the ultimate source of the energy in their food.

In producer gas making furnace, steam is added along with air to mainly control the (A) Fusion of coal ash & clinker formation (B) C. V. of producer gas (C) Temperature of producer gas (D) Tar content in producer gas

Description : In producer gas making furnace, steam is added along with air to mainly control the (A) Fusion of coal ash & clinker formation (B) C. V. of producer gas (C) Temperature of producer gas (D) Tar content in producer gas

Last Answer : (A) Fusion of coal ash & clinker formation

Which of the following is not used as a binder in coal briquetting? (A) Tar (B) Molasses(C) Pitch(D) Line

Description : Which of the following is not used as a binder in coal briquetting? (A) Tar (B) Molasses (C) Pitch (D) Line

Last Answer : (D) Line

The main product of high temperature carbonisation of coal is (A) Coke (B) Ammonia (C) Tar (D) Coke oven gas

Description : The main product of high temperature carbonisation of coal is (A) Coke (B) Ammonia (C) Tar (D) Coke oven gas

Last Answer : (A) Coke

A coal having high amount of volatile matter (A) Would require smaller combustion chamber (B) Produces very little of tar and gas on carbonisation (C) Ignites easily and burns with long smoky flame (D) All (A), (B) and (C)

Description : A coal having high amount of volatile matter (A) Would require smaller combustion chamber (B) Produces very little of tar and gas on carbonisation (C) Ignites easily and burns with long smoky flame (D) All (A), (B) and (C)

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

A coal having high amount of volatile matter (A) Would require smaller combustion chamber (B) Produces very little of tar and gas on carbonisation(C) Ignites easily and burns with long smoky flame(D) All (A), (B) and (C)

Description : A coal having high amount of volatile matter (A) Would require smaller combustion chamber (B) Produces very little of tar and gas on carbonisation (C) Ignites easily and burns with long smoky flame (D) All (A), (B) and (C)

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

Producer gas containing least amount of tar is produced by the (A) Partial combustion of coal (B) Partial combustion of large size (< 50 mm) coke (C) High pressure gasification of coal (e.g. in Lurgi gasifier) (D) Atmospheric pressure gasification of coal (e.g., in Kopper-Totzek gasifier)

Description : Producer gas containing least amount of tar is produced by the (A) Partial combustion of coal (B) Partial combustion of large size (< 50 mm) coke (C) High pressure gasification of coal (e.g. in Lurgi gasifier) (D) Atmospheric pressure gasification of coal (e.g., in Kopper-Totzek gasifier)

Last Answer : (B) Partial combustion of large size (< 50 mm) coke

Coal tar fuel - 200 (CTF 200) is a mixture of (A) Pitch and creosote oil (B) Light oil and pitch (C) Anthracene and crecosote oil (D) Solar oil and pitch

Description : Coal tar fuel - 200 (CTF 200) is a mixture of (A) Pitch and creosote oil (B) Light oil and pitch (C) Anthracene and crecosote oil (D) Solar oil and pitch

Last Answer : (A) Pitch and creosote oil

In high temperature carbonisation (as compared to low temperature carbonisation) of coal, the (A) Gas yield is less (B) Tar yield is more (C) Ignition temperature of coke produced is less (D) Aromatic content of tar produced is more

Description : In high temperature carbonisation (as compared to low temperature carbonisation) of coal, the (A) Gas yield is less (B) Tar yield is more (C) Ignition temperature of coke produced is less (D) Aromatic content of tar produced is more

Last Answer : (D) Aromatic content of tar produced is more

In high temperature carbonisation (as compared to low temperature carbonisation) of coal (A) Coke oven gas yield is more (B) Tar yield is less but free carbon in tar is more (C) Calorific value of coke oven gas is less (D) All (A), (B) and (C)

Description : In high temperature carbonisation (as compared to low temperature carbonisation) of coal (A) Coke oven gas yield is more (B) Tar yield is less but free carbon in tar is more (C) Calorific value of coke oven gas is less (D) All (A), (B) and (C)

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

. By-products recovery process from coal carbonisation is termed asdirect, indirect and semi direct process depending upon the method of recovery of (A) Tar (B) Benzol (C) Ammonia (D) None of these

Description : . By-products recovery process from coal carbonisation is termed asdirect, indirect and semi direct process depending upon the method of recovery of (A) Tar (B) Benzol (C) Ammonia (D) None of these

Last Answer : (C) Ammonia

Which of the following is not a 'manufactured' fuel? (A) LPG (B) Coal briquettes (C) Tar (D) Colloidal fuels

Description : Which of the following is not a 'manufactured' fuel? (A) LPG (B) Coal briquettes (C) Tar (D) Colloidal fuels

Last Answer : (C) Tar

Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively __________ percent. (A) 3 & 10 (B) 10 & 3 (C) 10 & 20 (D) 15 & 8

Description : Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively __________ percent. (A) 3 & 10 (B) 10 & 3 (C) 10 & 20 (D) 15 & 8

Last Answer : (B) 10 & 3

In low temperature carbonisation (as compared to high temperature carbonisation) of coal (A) Ammonia yield is more (B) Aliphatic tar is produced (C) Free carbon in tar is more (D) All (A), (B) and (C

Description : In low temperature carbonisation (as compared to high temperature carbonisation) of coal (A) Ammonia yield is more (B) Aliphatic tar is produced (C) Free carbon in tar is more (D) All (A), (B) and (C

Last Answer : (B) Aliphatic tar is produced

In low temperature carbonisation of coal as compared to high temperature carbonisation __________ produced is less. (A) Difference in gross & net calorific value of the coke oven gas (B) Free carbon content in tar (C) Yield percentage of coke (D) Yield of ammonia present in coke oven gas

Description : In low temperature carbonisation of coal as compared to high temperature carbonisation __________ produced is less. (A) Difference in gross & net calorific value of the coke oven gas (B) Free carbon content in tar (C) Yield percentage of coke (D) Yield of ammonia present in coke oven gas

Last Answer : (A) Difference in gross & net calorific value of the coke oven gas

Coal tar (produced by high temperature carbonisation) is the main source of (A) Aromatic compounds (B) Aliphatic compounds (C) Paraffins (D) Olefins

Description : Coal tar (produced by high temperature carbonisation) is the main source of (A) Aromatic compounds (B) Aliphatic compounds (C) Paraffins (D) Olefins

Last Answer : (A) Aromatic compounds

High temperature carbonisation of coal produces (A) Inferior coke compared to low temperature carbonisation (B) Less of gases compared to liquid products (C) Large quantity of tar compared to low temperature carbonisation (D) None of these

Description : High temperature carbonisation of coal produces (A) Inferior coke compared to low temperature carbonisation (B) Less of gases compared to liquid products (C) Large quantity of tar compared to low temperature carbonisation (D) None of these

Last Answer : (D) None of these

During the carbonisation of coal (A) All tar is evolved at < 600°C (B) Evolution of H2 and formation of methane and aromatics occur at > 700°C (C) Hard semi-coke starts shrinking at 600°C (D) All (A), (B) and (C)

Description : During the carbonisation of coal (A) All tar is evolved at < 600°C (B) Evolution of H2 and formation of methane and aromatics occur at > 700°C (C) Hard semi-coke starts shrinking at 600°C (D) All (A), (B) and (C)

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

In low temperature carbonisation of coal, the(A) Yield of coke oven gas is 290 Nm3/ton dry coal(B) Volatile matter in coke is zero(C) Temperature maintained is 700°C(D) Yield of tar is about 3% of dry coal

Description : In low temperature carbonisation of coal, the (A) Yield of coke oven gas is 290 Nm3 /ton dry coal (B) Volatile matter in coke is zero (C) Temperature maintained is 700°C (D) Yield of tar is about 3% of dry coal

Last Answer : (C) Temperature maintained is 700°C