Description : Photochemical smog formed in congested metropolitan cities mainly consists of :
Last Answer : Photochemical smog formed in congested metropolitan cities mainly consists of : A. Ozone, peroxyacyl nitrate ... D. Hydrocarbons, ozone and `SO_(x)`
Description : Photochemical smog is formed from automobile exhaust (A) By reaction of hydrocarbon & nitric oxide in presence of sunlight (B) Appears only on sunny days (C) Is harmful for crops and trees also besides causing eye irritation & asthma (D) All (A), (B) & (C)
Last Answer : (D) All (A), (B) & (C)
Description : 28. Which one of the following statements regarding photochemical smog is not correct? (1) Photochemical smog does not cause irritation in eyes and throat (2) Carbon monoxide does not ... agent in character (4) Photochemical smog is formed through photochemical reaction involving solar energy.
Last Answer : Photochemical smog does not cause irritation in eyes and throat
Description : What is photochemical smog? -Biology
Last Answer : answer:
Description : Photochemical smog occurs in which climage? -General Knowledge
Last Answer : The answer is 'Auxin'
Description : What is produced during the formation of photochemical smog? -Do You Know?
Description : Which of the following is responsible for the formation of photochemical smog ?
Last Answer : Answer : Carbon monoxide is responsible for creating photochemical smog.
Description : Which of the following cause photochemical smog?
Last Answer : Which of the following cause photochemical smog? A. `O_(3)` B. `CO_(2)` C. `CH_(4)` D. `SO_(2)`
Description : Common components of photochemical smog may not contain:
Last Answer : Common components of photochemical smog may not contain: A. PAN B. Ozone C. Nitrogen dioxide D. `SO_(2)`
Description : Photochemical smog consists of
Last Answer : Photochemical smog consists of A. `O_(3), SO_(2)` and hydrocarbons B. `O_(3),PAN` and `NO_(2)` ... CO_(2)` and hydrocarbons D. `SO_(2)`,PAN and smoke
Description : Primary constituents of photochemical smog are
Last Answer : Primary constituents of photochemical smog are A. `SO_(2)` and CO B. `CO_(2)` and `NO_ ... (2)` and unsaturated hydrocarbons D. Hydrocarbons and CFCs.
Description : Photochemical smog is related to the pollution of :
Last Answer : Photochemical smog is related to the pollution of : A. Air B. Water C. Soil D. Nostoc.
Description : The main component of photochemical smog is:
Last Answer : The main component of photochemical smog is: A. `O_(3)` B. PAN C. PPN and PBN D. both A and B
Description : Photochemical smog was first observed in
Last Answer : Photochemical smog was first observed in A. Los angeless B. Tokyo C. New york D. Sydney
Description : Photochemical smog brings about
Last Answer : Photochemical smog brings about A. Defoliation B. Bleaching and blazing of foliage C. Floral bud shedding D. discolouration and curling of petals.
Description : Photochemical smog does not contain
Last Answer : Photochemical smog does not contain A. Carbon dioxide B. PAN (peroxy acyl nitrate) C. Ozone D. Nitrogen dioxide
Last Answer : Photochemical smog was first observed in A. London B. Los Angeles C. Paris D. Tokyo
Description : The term 'brown air' is used for – (1) Acid fumes (2) Photochemical smog (3) Sulphurous smog (4) Industrial smog
Last Answer : (2) Photochemical smog Explanation: Photochemical smog which is mainly composed of ozone (O3), Peroxyacetyl nitrate (PAN) and No., is also known as brown air where solar radiation is intense. In ... solar radiation or areas, smog formation is incomplete and the air is referred to as grey air.
Description : Which of the following is produced during the formation of photochemical smog? (1) Nitrogen Oxides (2) Hydrocarbons (3) Methane (4) Ozone
Last Answer : (4) Ozone Explanation: Ozone is produced during the formation of photochemical smog. Photochemical smog is a mixture of pollutants that are formed when nitrogen oxides and volatile organic compounds (VOCs) react to sunlight, creating a brown haze above cities.
Description : What is produced during the formation of photochemical smog?
Last Answer : Nitrogen oxide
Description : The yellow colour in photochemical smog is due to the presence of------? A. Sulphur dioxide B. Carbon dioxide C. Nitrogen dioxide (Answer) D. CFC’s
Last Answer : C. Nitrogen dioxide (Answer)
Description : Photochemical smog pollution does not contain (a) PAN (peroxyacyl nitrate) (b) ozone (c) nitrogen dioxide (d) carbon dioxide.
Last Answer : (d) carbon dioxide.
Description : Which is a secondary air pollutant? (A) Photochemical smog (B) Sulphur dioxide (C) Nitrogen dioxide (D) Dust particles
Last Answer : (A) Photochemical smog
Description : Direct reaction of unsaturated hydrocarbons with either NO or NO2 produces an eye irritating pollutant compound known as (A) Photochemical smog (B) Peroxyacetyl nitrate (PAN) or methyl nitrite (C) Benzopyrene (D) Polyacrylonitrile
Last Answer : (B) Peroxyacetyl nitrate (PAN) or methyl nitrite
Description : Particulate' air pollutants are finely divided solids and liquids. Which of the following is not a ‘particulate’? (A) Dust & mists (B) Smoke & fumes (C) Photochemical smog & soot (D) None of these
Last Answer : (D) None of these
Description : Which of the following is not a secondary air pollutant? (A) Ozone (B) Photochemical smog (C) Sulphur dioxide (D) All (A), (B) & (C)
Last Answer : (C) Sulphur dioxide
Description : Which of the following is a secondary air pollutant? (A) Photochemical smog (B) Sulphur dioxide (C) Nitrogen dioxide (D) Dust particles
Description : Which of the following emissions in the exhaust gas of an I.C. engine causes the formation of photochemical smog? (A) Nitrogen oxides (B) Hydrocarbons (C) Both 'a' & 'b' (D) Carbon monoxide
Last Answer : (C) Both 'a' & 'b'
Description : Which of the following factors contribute to formation of photochemical smog? 1. Stable atmosphere 2. NOx 3. Solar insolation 4. CO (a) 1, 2, 3, & 4 (b) 2, 3 & 4 only (c) 1 & 4 only (d) 1, 2 and 3 only
Last Answer : (a) 1, 2, 3, & 4
Description : Which of the following are responsible for the formation of photochemical smog ? 1. Light intensity 2. Ratio of hydrocarbons to nitric oxide 3. CO2 4. Hydrocarbon reactivity 5. SO2 (a) 1, 2, 3, 4 and 5 (b) 1, 2 and 4 only (c) 2, 3 and 4 only (d) 2, 3 and 5 only
Last Answer : (b) 1, 2 and 4 only
Description : What is responsible for the reddish, brown color of photochemical smog?
Last Answer : ANSWER: NITROGEN DIOXIDE or NO2
Description : Nitrous oxide, commonly called laughing gas, has been a matter of concern to environmentalists recently because: w) it is thought to cause cancer at low concentrations. x) it produces photochemical smog. y) it is a greenhouse gas. z) none of the above
Last Answer : ANSWER: Y -- IT IS A GREENHOUSE GAS.
Description : The constituents of photochemical smog responsible for eye irritation are (A) SO2 and O3 (B) SO2 and NO2 (C) HCHO and PAN (D) SO2 and SPM
Last Answer : (C) HCHO and PAN
Description : The term ‘brown air’ is used for (1) Acid fumes (2) Photochemical smog (3) Sulphurous smog (4) Industrial smog
Last Answer : Photochemical smog
Description : The smog which is formed at high temperature is
Last Answer : The smog which is formed at high temperature is A. London smog B. Classical smog C. Los Angeles smog D. Sulfurous smog
Description : Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby ... B) Irritation in eyes (C) Respiratory trouble (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Smog is not formed due to the presence of __________ in the atmosphere. (A) SO2 (B) NOx (C) CO2 (D) Any of these
Last Answer : (C) CO2
Description : What is Photochemical Smoke ?
Description : How is photochemical smoke created ?
Last Answer : Combustion of fuels combines carbon monoxide , nitrous oxide and unused gaseous fuels in vehicle exhaust fumes to form photochemical fumes through various chemical reactions in the presence of sunlight.
Last Answer : Photochemical smoke is a toxic gas that combines carbon-monoxide , nitrous oxide and unused gaseous fuels (methane) into the air and produces toxic gases through various chemical reactions in the presence of sunlight.
Description : Photochemical smong always contains
Last Answer : Photochemical smong always contains A. Ozone B. Methane C. Carbon monoxides D. Carbon dioxide
Description : Air pollutants that produce photochemical oxidants include
Last Answer : Air pollutants that produce photochemical oxidants include A. `CO_(2)`, CO and `SO_(2)` B. ... nitric acid D. ozone, chlorine and sulphur dioxide.
Description : Air pollutant photochemical oxidants include
Last Answer : Air pollutant photochemical oxidants include A. nitrous oxide, nitric acid and nitric oxide B. ... aldehydes D. carbon monoxide and sulphur dioxide.
Description : Photochemical reaction of nitrogen oxides with unsaturated hydrocarbons produces
Last Answer : Photochemical reaction of nitrogen oxides with unsaturated hydrocarbons produces A. methyl isocyanate B. ... C. Benzpyrene D. peroxy-acyl nitrates.
Description : Assertion (A): There is no reaction known for which `DeltaG` is positive, yet it is spontaneous. Reason (R ) : For photochemical reaction, `DeltaG` is
Last Answer : Assertion (A): There is no reaction known for which `DeltaG` is positive, yet it is spontaneous. ... False. D. If both Assertion & Reason are false.
Description : Combustion of a candle is a/an - (1) photochemical reaction (2) physical change (3) endothermic reaction (4) exothermic reaction
Last Answer : (4) exothermic reaction Explanation: In theory, a candle is made of a solid hydrocarbon called paraffin. When the solid burns, the hydrocarbon reacts with oxygen to form carbon dioxide and water. The reaction is exothermic, meaning it releases heat to the atmosphere along with the other products.
Description : Chlorination of benzene is done to produce benzene hexachloride (a pesticide) in a photochemical reactor lined with (A) Karbate (B) Lead or glass (C) Fireclay bricks (D) PVC
Last Answer : (B) Lead or glass
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