One of the major sources of organic compounds isNatural gas (b) Fermentation (c) Sea water (d) Atmosphere

One of the major sources of organic compounds is
Natural gas
(b) Fermentation
(c) Sea water
(d) Atmosphere
by

1 Answer

Answer :

Natural gas
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Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere? (a) Aerobic nitrate oxidation and nitrite reduction (b) Decomposition of organic nitrogen and conversion of dinitrogen to ammonium compounds (c) Enteric fermentation in cattle and nitrogen fixation by Rhizobium in root nodules of legumes (d) Anaerobic ammonium oxidation and denitrification

Description : Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere? (a) Aerobic nitrate oxidation and nitrite reduction (b) ... fixation by Rhizobium in root nodules of legumes (d) Anaerobic ammonium oxidation and denitrification

Last Answer : (d) Anaerobic ammonium oxidation and denitrification

What do you understand by the term Dark Fermentation'? (1) It is a method to dispose nu-clear wastes. (2) It is a method to produce methane from organic wastes. (3) It is a method to reduce COD in the atmosphere. (4) It is a method to produce Hydrogen as a fuel from waste water.

Description : What do you understand by the term Dark Fermentation'? (1) It is a method to dispose nu-clear wastes. (2) It is a method to produce methane from organic wastes. (3) It is a method to reduce COD in the atmosphere. (4) It is a method to produce Hydrogen as a fuel from waste water.

Last Answer : (4) It is a method to produce Hydrogen as a fuel from waste water. Explanation: Dark fermentation is the fermentative conversion of organic substrate to bio-hydrogen. It is a complex ... . Wastewater is used as a potential substrate for bio-hydrogen production in the dark fermentation process.

What do you understand by the term ‘Dark Fermentation’? (1) It is a method to dispose nuclear wastes. (2) It is a method to produce methane from organic wastes. (3) It is a method to reduce COD in the atmosphere. (4) It is a method to produce Hydrogen as a fuel from waste water.

Description : What do you understand by the term ‘Dark Fermentation’? (1) It is a method to dispose nuclear wastes. (2) It is a method to produce methane from organic wastes. (3) It is a method to reduce COD in the atmosphere. (4) It is a method to produce Hydrogen as a fuel from waste water.

Last Answer :  It is a method to produce Hydrogen as a fuel from waste water.

Production of alcohol from organic compounds by microorganisms is known as (1) Combustion (2) Fermentation (3) Anaerobic: respiration (4) Aerobic respiration

Description : Production of alcohol from organic compounds by microorganisms is known as (1) Combustion (2) Fermentation (3) Anaerobic: respiration (4) Aerobic respiration

Last Answer : (3) Anaerobic: respiration Explanation: The process of breaking down large molecules into simpler one in the presence of enzyme is called fermentation.

Production of alcohol from organic compounds by microorganisms is known as (1) Combustion (2) Fermentation (3) Anaerobic respiration (4) Aerobic respiration

Description : Production of alcohol from organic compounds by microorganisms is known as (1) Combustion (2) Fermentation (3) Anaerobic respiration (4) Aerobic respiration

Last Answer : Fermentation

(1) the action of ultraviolet rays on oxygen Explanation: The majority of tropospheric ozone formation occurs when nitrogen oxides (NOx), carbon monoxide (CO ) and volatile organic compounds (VOCs), such as xylene, react in the atmosphere in the presence of sunlight containing ultra violet rays. NOx, CO, and VOCs are called ozone precursors. CO + 2O2 + CO2 + O3

Description : (1) the action of ultraviolet rays on oxygen Explanation: The majority of tropospheric ozone formation occurs when nitrogen oxides (NOx), carbon monoxide (CO ) and volatile organic compounds (VOCs), such as xylene, ... violet rays. NOx, CO, and VOCs are called ozone precursors. CO + 2O2 + CO2 + O3

Last Answer : Water is not effective in extinguishing a fire caused by petrol because - (1) the flame is too hot for water to cool it down (2) water and petrol react chemically (3) water and petrol are ... (4) water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn

If Organic sources of carcinogenic compounds in water persist even after chlorination, then what is the correct sequence among treatment processes listed below if all these are considered compulsory ? 1. Coagulation 2. Sedimentation 3. Filtration in general 4. Activated carbon bed filtration 5. Flocculation 6. Chlorination a) 4-5-3-2-6 and 1 b) 1-2-3-4-5 and 6 c) 4- 2- 3- 1- 5 and 6 d) 1-5-2-3-4 and 6

Description : If Organic sources of carcinogenic compounds in water persist even after chlorination, then what is the correct sequence among treatment processes listed below if all these are considered compulsory ? 1. Coagulation 2. Sedimentation 3. Filtration in ... c) 4- 2- 3- 1- 5 and 6 d) 1-5-2-3-4 and 6

Last Answer : d) 1-5-2-3-4 and 6

Microorganisms that use organic compounds as energy and carbon sources are a. Chemoheterotrophs. b. Chemoautotrophs. c. Photoautotrophs. d. Photoheterotrophs.

Description : Microorganisms that use organic compounds as energy and carbon sources are a. Chemoheterotrophs. b. Chemoautotrophs. c. Photoautotrophs. d. Photoheterotrophs.

Last Answer : c. Photoautotrophs.

Which of the following materials is the chief source of natural organic compounds? w) petroleum x) coal y) natural gas z) carbon dioxide

Description : Which of the following materials is the chief source of natural organic compounds? w) petroleum x) coal y) natural gas z) carbon dioxide

Last Answer : ANSWER: W -- PETROLEUM

Which one of the following structural formulae of two organic compounds is correctly identified along with its related function?(a) B : Adenine - A nucleotide that makes up nucleic acids (b) A : Triglyceride - Major source of energy (c) B : Uracil - A component of DNA (d) A : Lecithin - A component of cell membrane

Description : Which one of the following structural formulae of two organic compounds is correctly identified along with its related function? (a) B : Adenine - A nucleotide that makes up nucleic acids (b) A : Triglyceride - ... ) B : Uracil - A component of DNA (d) A : Lecithin - A component of cell membrane

Last Answer : (d) A : Lecithin - A component of cell membrane

Fermentation is a process of decomposition of an organic compound by (1) catalysts (2) enzymes (3) carbanions (4) free radicals

Description : Fermentation is a process of decomposition of an organic compound by (1) catalysts (2) enzymes (3) carbanions (4) free radicals

Last Answer : (2) enzymes Explanation: Fermentation in food processing typically is the conversion of carbohydrates to alcohols and carbon dioxide or organic acids using yeasts, bacteria, or a combination there ... to lactic acid. Alcoholic fermentation follows the same enzymatic pathway for the first 10 steps.

Fermentation is a process of decomposition of an organic compound by : (1) catalysts (2) enzymes (3) carbanions (4) free radicals

Description : Fermentation is a process of decomposition of an organic compound by : (1) catalysts (2) enzymes (3) carbanions (4) free radicals

Last Answer : enzymes

Dough kept overnight in warm weather becomes soft and spongy because of (a) absorption of carbon dioxide from atmosphere (b) fermentation (c) cohesion (d) osmosis.

Description : Dough kept overnight in warm weather becomes soft and spongy because of (a) absorption of carbon dioxide from atmosphere (b) fermentation (c) cohesion (d) osmosis.

Last Answer : (b) fermentation

Which of the following is not a characteristic of organic compounds? (a) They usually have low melting points. (b) They usually are only slightly soluble or insoluble in water. (c) If water soluble they seldom conduct an electric current. (d) Bonds which bind the atoms together are nearly always ionic.

Description : Which of the following is not a characteristic of organic compounds? (a) They usually have low melting points. (b) They usually are only slightly soluble or insoluble in water. (c) If water ... they seldom conduct an electric current. (d) Bonds which bind the atoms together are nearly always ionic.

Last Answer : Bonds which bind the atoms together are nearly always ionic.

A family of organic compounds whose molecules will add water under an acid catalysis and change into alcohols are the: w) alkenes x) alkanes y) aromatic hydrocarbons z) cycloalkanes

Description : A family of organic compounds whose molecules will add water under an acid catalysis and change into alcohols are the: w) alkenes x) alkanes y) aromatic hydrocarbons z) cycloalkanes

Last Answer : ANSWER: W -- ALKENES

Choose the incorrect statement pertaining to organic compounds (1) They have low melting and boiling points (2) They do not dissolve in water (3) They are not easily combustible (4) They contain mainly carbon and hydrogen

Description : Choose the incorrect statement pertaining to organic compounds (1) They have low melting and boiling points (2) They do not dissolve in water (3) They are not easily combustible (4) They contain mainly carbon and hydrogen

Last Answer : They are not easily combustible

How do I know what physical states I should use for different organic compounds?

Description : How do I know what physical states I should use for different organic compounds?

Last Answer : answer:look in the textbook at the states in which the compounds are labelled in example reactions. They are extremely unlikely to be different in an exam. If they are, it will be a A* mark ... will just be mostly intuitive but then, most people never get a feel for organic chemistry hahahah.

What is the difference in the molecular formula of any two consecutive members of a homologous series of organic compounds? -Chemistry

Description : What is the difference in the molecular formula of any two consecutive members of a homologous series of organic compounds? -Chemistry

Last Answer : —CH2— is the difference in the molecular formula of any two consecutive members of a homologous series of organic compounds.

What are the two differences between organic compounds and inorganic compounds ?

Description : What are the two differences between organic compounds and inorganic compounds ?

Last Answer : The two differences between organic and inorganic compounds are mentioned below: 1. All organic compounds must have carbon in their molecules. Such as: CH 4, C 2 H 3 OH etc. But molecules of ... On the other hand, due to ionic bonds, the reaction of inorganic compounds is faster. Thank you!

Soap Organic Compounds or Inorganic Compounds ?

Description : Soap Organic Compounds or Inorganic Compounds ?

Last Answer : Soap is an organic compound because it is derived from organic compounds. Soap is made by adding caustic soda to organic compounds. . .. CH2-OCO-R .. | CH-OCO-R ............................................ ... .... CH2-OH oil or fat + caustic soda --- > soap + glycerol here R = Cn H 2n + 1 n = 12-18

How do you prepare organic compounds urea ?

Description : How do you prepare organic compounds urea ?

Last Answer : Scientist Friedrich Volar prepares the organic compound urea by heating the inorganic compound ammonium cyanate. Thanks!

What is the name of the first organic compound prepared from inorganic compounds ?

Description : What is the name of the first organic compound prepared from inorganic compounds ?

Last Answer : The first organic compound made from inorganic compound is called urea.

What class of organic compounds is acetylene ?

Description : What class of organic compounds is acetylene ?

Last Answer : Acetylene alkyne class organic compounds.

Are organic compounds electrolytic or covalent substances ?

Description : Are organic compounds electrolytic or covalent substances ?

Last Answer : Organic compounds are covalent substances.

What is the reason for the high number of organic compounds ?

Description : What is the reason for the high number of organic compounds ?

Last Answer : The reasons for the high number of organic compounds are: 1) Cation of carbon element 2) Electronegativity and bonding strength of carbon 3) Equivalence of organic compounds

(3) They are not easily combustible Explanation: Typical organic compounds are combustible by nature as they contain carbon. Organic compounds mostly consist of carbon, hydrogen, halogen, and phosphorus.

Description : (3) They are not easily combustible Explanation: Typical organic compounds are combustible by nature as they contain carbon. Organic compounds mostly consist of carbon, hydrogen, halogen, and phosphorus.

Last Answer : Which of the process is known as nitrification? (1) Reaction of Nitrogen Monoxide with oxygen to form nitric acid (2) Reaction of nitrogen dioxide with water to form nitric acid (3) Conversion of ammonia to nitrites (4) Conversion of nitrite to nitric oxide

In organic compounds, nitrogen is estimated by – (1) Carius method (2) Victor-Meyees method (3) Liebigs method (4) Dumas' method

Description : In organic compounds, nitrogen is estimated by – (1) Carius method (2) Victor-Meyees method (3) Liebigs method (4) Dumas' method

Last Answer : (4) Dumas' method Explanation: In Dumas' method, a known quantity of nitrogen containing organic compound is heated strongly with excess of copper oxide in an atmosphere of carbon dioxide to produce free nitrogen in addition to carbon dioxide and water.

In organic compounds, nitrogen is estimates by - (1) Dumas method (2) Carius method (3) Victor-meyer's method (4) Liebig's method

Description : In organic compounds, nitrogen is estimates by - (1) Dumas method (2) Carius method (3) Victor-meyer's method (4) Liebig's method

Last Answer : (1) Dumas method

Organic compounds are - (1) Covalent compounds (2) Ionic compounds (3) Co-ordination compounds (4) Interstitial compounds

Description : Organic compounds are - (1) Covalent compounds (2) Ionic compounds (3) Co-ordination compounds (4) Interstitial compounds

Last Answer : (1) Covalent compounds Explanation: Organic compounds are always covalent compounds because it is more energetically favorable for carbon to covalently bond. Organic compounds, such as carbohydrates, lipids, proteins and nucleic acids, are all examples of covalent compounds.

Which element found in all organic compounds? (1) carbon (2) nitrogen (3) calcium (4) none of them

Description : Which element found in all organic compounds? (1) carbon (2) nitrogen (3) calcium (4) none of them

Last Answer : (1) carbon Explanation: Carbon is found in all organic matter, but NOT in inorganic matter organic means chemical compounds with carbon in them. In a more general sense, organic refers to living things.

Which one of the following organic compound is used to remove stains of iron compounds? (1) Oxalic acid (2) Benzoic acid (3) Phthalic acid (4) Cinnamic acid

Description : Which one of the following organic compound is used to remove stains of iron compounds? (1) Oxalic acid (2) Benzoic acid (3) Phthalic acid (4) Cinnamic acid

Last Answer : (1) Oxalic acid Explanation: Oxalic acid is a reducing agent and its conjugate base, known as oxalate is a chelating agent for metal cations. Oxalic acid's main applications include cleaning or ... agents is due to its forming a stable, water soluble salt with ferric iron, ferrioxalate ion.

Which one of the following organic compounds has fruity smell? (1) Alcohol (2) Aldehyde (3) Ester (4) Ether

Description : Which one of the following organic compounds has fruity smell? (1) Alcohol (2) Aldehyde (3) Ester (4) Ether

Last Answer : (3) Ester Explanation: Esters are common in organic chemistry and biological materials, and often have a characteristic pleasant, fruity odour. This leads to their extensive use in the fragrance and ... ester as the reaction product. Esters are widespread in nature and are widely used in industry.

What is sublimation? What kind of organic compounds can be purified by this technique?

Description : What is sublimation? What kind of organic compounds can be purified by this technique?

Last Answer : Process of change of solid substance directly into vapour phase without the intermediate liquid state is called sublimation. This technique is used to separate sublimable compounds.Like camphor ,ammonium chloride.

In stable organic compounds, carbon will always form (a) 2 bonds (b) 4 bonds (c) 3 bonds (d) 5 bonds

Description : In stable organic compounds, carbon will always form (a) 2 bonds (b) 4 bonds (c) 3 bonds (d) 5 bonds

Last Answer : 4 bonds

Which of the following organic compounds is known as a saturated chain hydrocarbon ? w) an aromatic compound x) an alkene y) an alkyne z) an alkane

Description : Which of the following organic compounds is known as a saturated chain hydrocarbon ? w) an aromatic compound x) an alkene y) an alkyne z) an alkane

Last Answer : ANSWER: Z -- AN ALKANE

Of the nonmetallic elements the one least likely to be found in organic compounds is: w) nitrogen x) phosphorus y) chlorine z) selenium

Description : Of the nonmetallic elements the one least likely to be found in organic compounds is: w) nitrogen x) phosphorus y) chlorine z) selenium

Last Answer : ANSWER: Z -- SELENIUM

To which class of organic chemical compounds does rhamnose (pron; ram-nose) belong?

Description : To which class of organic chemical compounds does rhamnose (pron; ram-nose) belong?

Last Answer : ANSWER: SUGARS or CARBOHYDRATE 

A family of organic compounds containing only carb and hydrogen and having only single bonds are the: w) alkenes and alkanes x) alkanes and cycloalkanes y) alkynes (pron: AL-kines) and alkenes z) cycloalkanes and alkenes

Description : A family of organic compounds containing only carb and hydrogen and having only single bonds are the: w) alkenes and alkanes x) alkanes and cycloalkanes y) alkynes (pron: AL-kines) and alkenes z) cycloalkanes and alkenes

Last Answer : ANSWER: B -- ALKANES AND CYCLOALKANES

Ketones are organic compounds. Name the functional group that all ketone molecules contain.

Description : Ketones are organic compounds. Name the functional group that all ketone molecules contain.

Last Answer : ANSWER: CARBONYL GROUP pr C DOUBLE BOND O

What class of organic compounds is characterized by an -OH group bonded to an alkyl group?

Description : What class of organic compounds is characterized by an -OH group bonded to an alkyl group?

Last Answer : ANSWER: ALCOHOL

Organic compounds are (1) Covalent compounds (2) Ionic compounds (3) Co-ordination compounds (4) Interstitial compounds

Description : Organic compounds are (1) Covalent compounds (2) Ionic compounds (3) Co-ordination compounds (4) Interstitial compounds

Last Answer : Covalent compounds

In organic compounds, nitrogen is estimated by (1) Carius method (2) Victor-Meyer’s method (3) Liebig’s method (4) Dumas’ method

Description : In organic compounds, nitrogen is estimated by (1) Carius method (2) Victor-Meyer’s method (3) Liebig’s method (4) Dumas’ method

Last Answer :  Dumas’ method

Which one of the following organic compound is used to remove stains of iron compounds? (1) Oxalic acid (2) Benzoic acid (3) Phthalic acid (4) Cinnamic acid

Description : Which one of the following organic compound is used to remove stains of iron compounds? (1) Oxalic acid (2) Benzoic acid (3) Phthalic acid (4) Cinnamic acid

Last Answer :  Oxalic acid

Which one of the following organic compounds has fruity smell? (1) Alcohol (2) Aldehyde (3) Ester (4) Ether

Description : Which one of the following organic compounds has fruity smell? (1) Alcohol (2) Aldehyde (3) Ester (4) Ether

Last Answer : Ester

When the Exxon Valdez oil spill occurred, technologists "fertilized" the oil-soaked water with _____ to modify the environment and stimulate he growth of naturally occurring microorganisms. a. nitrogen sources (e.g., urea) b. phosphorus compounds c. other mineral nutrients d. A-C above are correct

Description : When the Exxon Valdez oil spill occurred, technologists "fertilized" the oil-soaked water with _____ to modify the environment and stimulate he growth of naturally occurring microorganisms. a. nitrogen sources (e.g., urea) b. phosphorus compounds c. other mineral nutrients d. A-C above are correct

Last Answer : d. A-C above are correct

Presence of carbon monoxide in atmosphere produced by decomposition of chlorophyll and haemoglobin breakdown of some animals, beyond TLV (>50 ppm) (A) Acts as a green house gas thereby raising earth's temperature (B) Causes asphyxia (C) Causes increase in sea level (D) Enhances the green house effect

Description : Presence of carbon monoxide in atmosphere produced by decomposition of chlorophyll and haemoglobin breakdown of some animals, beyond TLV (>50 ppm) (A) Acts as a green house gas thereby raising earth's ... (B) Causes asphyxia (C) Causes increase in sea level (D) Enhances the green house effect

Last Answer : (B) Causes asphyxia

Which of the following factors does not govern the mechanism of petroleum formation from organic sources? (A) pH of the soil (B) Bacterial action (C) Heat (D) Pressure

Description : Which of the following factors does not govern the mechanism of petroleum formation from organic sources? (A) pH of the soil (B) Bacterial action (C) Heat (D) Pressure

Last Answer : (A) pH of the soil

Which of the following sources is responsible for maximum air pollution? (A) Industrial chimney exhaust (B) Forest fire (C) Automobiles exhaust (D) Photochemical oxidation of organic matter

Description : Which of the following sources is responsible for maximum air pollution? (A) Industrial chimney exhaust (B) Forest fire (C) Automobiles exhaust (D) Photochemical oxidation of organic matter

Last Answer : (C) Automobiles exhaust

How many millimeters of mercury are equal to one atmosphere at sea level?

Description : How many millimeters of mercury are equal to one atmosphere at sea level?

Last Answer : ANSWER: 760 MILLIMETERS

Planets do not twinkle because they (a) emit light continuously (b) are luminous sources of light (c) are nearer to us and therefore their light does not pass through the atmosphere (d) are nearer to us and therefore minor variations in their intensity are not noticeable

Description : Planets do not twinkle because they (a) emit light continuously (b) are luminous sources of light (c) are nearer to us and therefore their light does not pass through the atmosphere (d) are nearer to us and therefore minor variations in their intensity are not noticeable

Last Answer : Ans:(d)