Color of nitric acid is light yellow due to the presence of (A) NO (B) NO2 (C) N2H5 (D) NH3

Color of nitric acid is light yellow due to the presence of
(A) NO
(B) NO2
(C) N2H5
(D) NH3
by

1 Answer

Answer :

(B) NO2
by

Related questions

Pick out the wrong statement pertaining to nitric acid. (A) About 90% of nitric acid is manufactured by Ostwald's process (B) It is a strong mono basic acid which reacts with almost all the metals except noble metals (C) Yellow color of impure nitric acid is because of dissolved oxides of nitrogen (mainly NO2 ) (D) Arc process of nitric acid manufacture is economical as compared to Ostwald's process

Description : Pick out the wrong statement pertaining to nitric acid. (A) About 90% of nitric acid is manufactured by Ostwald's process (B) It is a strong mono basic acid which reacts with almost all the ... (mainly NO2 ) (D) Arc process of nitric acid manufacture is economical as compared to Ostwald's process

Last Answer : (D) Arc process of nitric acid manufacture is economical as compared to Ostwald's process

During nitric acid manufacture, catalytic oxidation of ammonia at 800°C in presence of platinum catalyst produces nitrogen oxide. Conversion of NH3 to NO is about __________ percent. (A) 38 (B) 68 (C) 82 (D) 98

Description : During nitric acid manufacture, catalytic oxidation of ammonia at 800°C in presence of platinum catalyst produces nitrogen oxide. Conversion of NH3 to NO is about __________ percent. (A) 38 (B) 68 (C) 82 (D) 98

Last Answer : (D) 98

Acid rains are due to which of the following gases? (a) CO2 and CO (b) Ozone and CO2(c) NO2 and SO2 (d) NH3 and CO2

Description : Acid rains are due to which of the following gases? (a) CO2 and CO (b) Ozone and CO2(c) NO2 and SO2 (d) NH3 and CO2

Last Answer : (c) NO2 and SO2

Acid rains are produced by (a) excess NO2 and SO2 from burning fossil fuels (b) excess production of NH3 by industry and coal gas (c) excess release of carbon monoxide by incomplete combustion (d) excess formation of CO2 by combustion and animal respiration.

Description : Acid rains are produced by (a) excess NO2 and SO2 from burning fossil fuels (b) excess production of NH3 by industry and coal  gas (c) excess release of carbon monoxide by incomplete  combustion (d) excess formation of CO2 by combustion and  animal respiration.

Last Answer : (a) excess NO2 and SO2 from burning fossil fuels

Acid rains are produced by (a) excess NO2 and SO2 from burning fossil fuels (b) excess production of NH3 by industry and coal gas (c) excess release of carbon monoxide by incomplete combustion (d) excess formation of CO2 by combustion and animal respiration.

Description : Acid rains are produced by (a) excess NO2 and SO2 from burning fossil fuels (b) excess production of NH3 by industry and coal gas (c) excess release of carbon monoxide by incomplete combustion (d) excess formation of CO2 by combustion and animal respiration.

Last Answer : (a) excess NO2 and SO2 from burning fossil fuels

Acid rain is caused by a) SO2 and NO2 b) SO2 and CO c) NH3 and CO d) SO2 and NH3.

Description : Acid rain is caused by a) SO2 and NO2 b) SO2 and CO c) NH3 and CO d) SO2 and NH3.

Last Answer : a) SO2

Which of the following pollutants is absent in the emissions from a fertiliser plant? (A) SO2 & SO3 (B) NO2 (C) NH3 (D) CO

Description : Which of the following pollutants is absent in the emissions from a fertiliser plant? (A) SO2 & SO3 (B) NO2 (C) NH3 (D) CO

Last Answer : (D) CO

Indicate the types of isomerisms exhibited by the complex [Co(NH3)5 (NO2)] (NO3)2. (At. no. Co = 27) -Chemistry

Description : Indicate the types of isomerisms exhibited by the complex [Co(NH3)5 (NO2)] (NO3)2. (At. no. Co = 27) -Chemistry

Last Answer : It shows ionisation isomerism and linkage isomerism.

Which of the following is used as anesthetic? (1) NH3 (2) NO (3) NO2 (4) N2O

Description : Which of the following is used as anesthetic? (1) NH3 (2) NO (3) NO2 (4) N2O

Last Answer : (2) NO Explanation: Nitrous oxide (NO), commonly known as laughing as or happy gas, is the most commonly used inhalation anesthetic in dentistry and is commonly used in emergency centers ... inorganic inhalation agent that is colorless, odorless to sweet-smelling, and nonirritating to the tissues.

Which of the following is used as anesthetic ? (1) NH3 (2) NO (3) NO2 (4) N2O

Description : Which of the following is used as anesthetic ? (1) NH3 (2) NO (3) NO2 (4) N2O

Last Answer : NO

Major gaseous pollutant of the thermal power station is – (1) H2S (2) NH3 (3) NO2 (4) SO2

Description : Major gaseous pollutant of the thermal power station is – (1) H2S (2) NH3 (3) NO2 (4) SO2

Last Answer : (4) SO2 Explanation: A flue-gas stack is a type of chimney, a vertical pipe, channel or similar structure through which combustion product gases called flue gases are exhausted to the outside air ... CO2) and water vapor as well as nitrogen and excess oxygen remaining from the intake combustion air.

Which of the following is not an electrophile? (a) NH3 (b) Br+ (c) AlCl3 (d) NO2+

Description : Which of the following is not an electrophile? (a) NH3 (b) Br+ (c) AlCl3 (d) NO2+

Last Answer : NH3

Major gaseous pollutant of the thermal power station is (1) H2 S (2) NH3 (3) NO2 (4) SO2

Description : Major gaseous pollutant of the thermal power station is (1) H2 S (2) NH3 (3) NO2 (4) SO2

Last Answer : SO2

Photo chemical smog is a result-ant of the reaction among – (1) High concentration of NO2, O3, and CO in the evening (2) CO, CO2 and NO2 at low temperature (3) CO, O2 and peroxy acetyl nitrate in the presence of Sunlight (4) NO2, O3 and peroxy acetyl nitrate in the presence of Sunlight

Description : Photo chemical smog is a result-ant of the reaction among – (1) High concentration of NO2, O3, and CO in the evening (2) CO, CO2 and NO2 at low temperature (3) CO, O2 and peroxy acetyl nitrate in the presence of Sunlight (4) NO2, O3 and peroxy acetyl nitrate in the presence of Sunlight

Last Answer : (4) NO2, O3 and peroxy acetyl nitrate in the presence of Sunlight Explanation: Photochemical smog is a unique type of air pollution which is caused by reactions between sunlight and pollutants like hydrocarbons and nitrogen dioxide (NO and NO2).

To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of A. Hydrochloric acid B. Sulphuric acid C. Nitric acid D. Citric acid

Description : To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of A. Hydrochloric acid B. Sulphuric acid C. Nitric acid D. Citric acid

Last Answer : ANS: B

Which of the following statements is false about toluene? (a) can be prepared by treating benzene with methyl chloride in the presence of AlCl3. (b) is converted to benzoic acid on refluxing with acidic KMnO4 solution. (c) on refluxing with concentrated H2SO4 gives a mixture of ortho and para toluenesulfonic acid. (d) can be nitrated with concentrated nitric acid to give a mixture of ortho and meta nitrotoluene.

Description : Which of the following statements is false about toluene? (a) can be prepared by treating benzene with methyl chloride in the presence of AlCl3. (b) is converted to benzoic acid on refluxing with ... (d) can be nitrated with concentrated nitric acid to give a mixture of ortho and meta nitrotoluene.

Last Answer : can be nitrated with concentrated nitric acid to give a mixture of ortho and meta nitrotoluene

Acid rain is due to increase in atmospheric concentration of (a) ozone and dust (b) CO2 and CO (c) SO3 and CO (d) SO2 and NO2

Description : Acid rain is due to increase in atmospheric  concentration of (a) ozone and dust (b) CO2 and CO (c) SO3 and CO (d) SO2 and NO2

Last Answer : (d) SO2 and NO2.

Acid rain is due to increase in atmospheric concentration of (a) ozone and dust (b) CO2 and CO (c) SO3 and CO (d) SO2 and NO2.

Description : Acid rain is due to increase in atmospheric concentration of (a) ozone and dust (b) CO2 and CO (c) SO3 and CO (d) SO2 and NO2.

Last Answer : (d) SO2 and NO2.

Cow milk is yellow in color due to presence of (a) Xanthophyll (b) Riboflavin (c) Vital dye (d) None

Description : Cow milk is yellow in color due to presence of (a) Xanthophyll (b) Riboflavin (c) Vital dye (d) None

Last Answer : (b) Riboflavin

Coke oven gas burns with a yellowish flame, because of the presence of (A) CO2 (B) CH4 (C) H2(D) NH3

Description : Coke oven gas burns with a yellowish flame, because of the presence of (A) CO2 (B) CH4 (C) H2 (D) NH3

Last Answer : (B) CH4

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)

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)

A metal salt solution gives a yellow precipitate with silver nitrate. The precipitate dissolves in dilute nitric acid as well as in ammonium hydroxide

Description : A metal salt solution gives a yellow precipitate with silver nitrate. The precipitate dissolves in dilute nitric acid as well as in ammonium hydroxide

Last Answer : A metal salt solution gives a yellow precipitate with silver nitrate. The precipitate dissolves in dilute nitric acid as ... (3-)` D. `SO_(4)^(2-)`

Pick out the wrong statement. (A) Benzopyrene which causes cancer is present in traces in tobacco, charcoal & petrol driven automobile exhaust (B) NO2 is capable of penetrating the troposphere and can absorb both ultraviolet & visible light (C) Hydrocarbon pollutants are produced by sweet gum, oak & natural rubber trees (D) H2S is not at all produced during combustion of sulphur bearing fuels as all the sulphur is oxidised to SO2

Description : Pick out the wrong statement. (A) Benzopyrene which causes cancer is present in traces in tobacco, charcoal & petrol driven automobile exhaust (B) NO2 is capable of penetrating the troposphere and ... at all produced during combustion of sulphur bearing fuels as all the sulphur is oxidised to SO2

Last Answer : (D) H2S is not at all produced during combustion of sulphur bearing fuels as all the sulphur is oxidised to SO2

Acetamide is a much weaker base than ammonia. This is because (a) the electron withdrawing effect of the C=O group makes the lone pair of electrons on nitrogen atom less available for protonation. (b) ) the electron withdrawing effect of the C=O group makes the lone pair of electrons on nitrogen atom more available for protonation. (c) the presence of CH3 group sterically hinders the protonation of the NH2 group. (d) an H atom from the nitrogen is less easily lost from CH3CONH2 than from NH3.

Description : Acetamide is a much weaker base than ammonia. This is because (a) the electron withdrawing effect of the C=O group makes the lone pair of electrons on nitrogen atom less available for protonation. (b) ) ... NH2 group. (d) an H atom from the nitrogen is less easily lost from CH3CONH2 than from NH3.

Last Answer : the electron withdrawing effect of the C=O group makes the lone pair of electrons on nitrogen atom less available for protonation

Interveinal necrotic spots on leaves appear due to – (1) HF injuly (2) SO2 injury (3) NO2 injury (4) O3 injury

Description : Interveinal necrotic spots on leaves appear due to – (1) HF injuly (2) SO2 injury (3) NO2 injury (4) O3 injury

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Interveinal necrotic spots on leaves appear due to (1) HF injury (2) SO2 injury (3) NO2 injury (4) O3 injury

Description : Interveinal necrotic spots on leaves appear due to (1) HF injury (2) SO2 injury (3) NO2 injury (4) O3 injury

Last Answer : SO2 injury

When conc. H2 SO4 is added to dry KNO3 , brown fumes are evolved. These fumes are due to (1) SO3 (2) SO2 (3) NO2 (4) N2O

Description : When conc. H2 SO4 is added to dry KNO3 , brown fumes are evolved. These fumes are due to (1) SO3 (2) SO2 (3) NO2 (4) N2O

Last Answer : NO2

Concentrated nitric acid upon long standing turns yellowish-brown due to the formation of :

Description : Concentrated nitric acid upon long standing turns yellowish-brown due to the formation of :

Last Answer : Concentrated nitric acid upon long standing turns yellowish-brown due to the formation of : A. NO B. `NO_(2)` C. `N_(2)O` D. `N_(2)O_(4)`

Concentrated nitric acid upon long standing turns yellowish-brown due to the formation of :

Description : Concentrated nitric acid upon long standing turns yellowish-brown due to the formation of :

Last Answer : Concentrated nitric acid upon long standing turns yellowish-brown due to the formation of : A. NO B. `NO_(2)` C. `N_(2)O` D. `N_(2)O_(4)`

Which of the following agents is used in order to make benzene react with concentrated nitric acid to give nitrobenzene? (a) Concentrated H2SO4 (b) FeCl3 catalyst (c) Lindlar's catalyst (d) Ultraviolet light

Description : Which of the following agents is used in order to make benzene react with concentrated nitric acid to give nitrobenzene? (a) Concentrated H2SO4 (b) FeCl3 catalyst (c) Lindlar's catalyst (d) Ultraviolet light

Last Answer : Concentrated H2SO4

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

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

Main pollutants released from iron & steel industry is (A) CO, CO2 & SO2 (B) H2S, NO & SO3 (C) CO2 , H2S & NO2 (D) SO3 , NO2 & CO2

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Last Answer : (A) CO, CO2 & SO2

Main pollutants released from petroleum refineries is (A) CO, SO2 & H2S (B) CO2 , NO & SO3 (C) CO2 , H2S & NO2 (D) SO3 , NO2 & CO2

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Last Answer : (A) CO, SO2 & H2S

TLV of NO2 & NO exposure for the human being is 5 & 25 ppm respectively. Prolonged exposure of human being to NO2 causes (A) Skin disorder (B) Bronchitis (C) Bone disease (D) Cancer

Description : TLV of NO2 & NO exposure for the human being is 5 & 25 ppm respectively. Prolonged exposure of human being to NO2 causes (A) Skin disorder (B) Bronchitis (C) Bone disease (D) Cancer

Last Answer : (B) Bronchitis

Acid rain is caused by - (1) SO2 and particulates (2) (2) NO2 and particulates (3) (8) CO2 and CFCs (4) (4) SO2 and NO2

Description : Acid rain is caused by - (1) SO2 and particulates (2) (2) NO2 and particulates (3) (8) CO2 and CFCs (4) (4) SO2 and NO2

Last Answer : (4) SO2 and NO2 Explanation: Acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it possesses elevated levels of hydrogen ions (low pH). Acid ... sulfur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids.

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Last Answer : (c) SO2 and NO2

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Description : Acid rain is caused by (1) SO2 and particulates (2) NO2 and particulates (3) CO2 and CFCs (4) SO2 and NO2

Last Answer : SO2 and NO2

A cationic complex has two isomers A & B. Each has one Co3+, five NH3 , one Br and one SO4 2 . A gives a white precipitate with BaCl2 solution while B gives a yellow precipitate with AgNO3 solution. (a) What are the possible structures of the complexes A and B ? (a) Will the two complexes have same colour ?

Description : A cationic complex has two isomers A & B. Each has one Co3+, five NH3 , one Br and one SO4 2 . A gives a white precipitate with BaCl2 solution while B gives a yellow precipitate with AgNO3 ... are the possible structures of the complexes A and B ? (a) Will the two complexes have same colour ?

Last Answer : (a) [CO (NH3 ) 5 Br] SO4 and [CO (NH3 ) 5 SO4 ] Br  (b) NO

Fertiliser value of a nitrogenous fertiliser is expressed in terms of its __________ content(A) N2(B) KNO3(C) NO2(D) NHO3.

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Which of the following pollutants, if present in atmosphere is detectable by its odour ? (A) CO (B) SO2 (C) NO2 (D) CO2

Description : Which of the following pollutants, if present in atmosphere is detectable by its odour ? (A) CO (B) SO2 (C) NO2 (D) CO2

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Stainless steel is not corroded by (A) Hydrochloric acid (10%) (B) Nitric acid (10%) (C) Sulphuric acid (10%) (D) Saturated brine

Description : Stainless steel is not corroded by (A) Hydrochloric acid (10%) (B) Nitric acid (10%) (C) Sulphuric acid (10%) (D) Saturated brine

Last Answer : (B) Nitric acid (10%)

Most suitable material of construction for the storage of concentrated nitric acid is (A) Cast iron (B) Monel (C) Karbate (D) Aluminium or chromium alloys (Cr > 18% for cold acid)

Description : Most suitable material of construction for the storage of concentrated nitric acid is (A) Cast iron (B) Monel (C) Karbate (D) Aluminium or chromium alloys (Cr > 18% for cold acid)

Last Answer : (D) Aluminium or chromium alloys (Cr > 18% for cold acid)

Nickel made/clad equipments are suitable for handling (A) Ammonia (both aqueous & anhydrous) (B) Fruit juices, milk & its products and caustic soda solution (C) Nitric acid & hydrochloric acid (concentrated) (D) Sulphuric acid (concentrated)

Description : Nickel made/clad equipments are suitable for handling (A) Ammonia (both aqueous & anhydrous) (B) Fruit juices, milk & its products and caustic soda solution (C) Nitric acid & hydrochloric acid (concentrated) (D) Sulphuric acid (concentrated)

Last Answer : (B) Fruit juices, milk & its products and caustic soda solution

Aqueous nitric acid is stored in (A) Steel drum (B) Stainless steel vessel (C) Cast iron vessel lined with acid-proof masonry brick (D) Cast iron vessel

Description : Aqueous nitric acid is stored in (A) Steel drum (B) Stainless steel vessel (C) Cast iron vessel lined with acid-proof masonry brick (D) Cast iron vessel

Last Answer : (B) Stainless steel vessel

Gunmetal and bronze are not corroded by the action of (A) Wet chlorine (B) Synthetic detergent solution (C) Hydrochloric acid (10%) (D) Nitric acid (< 25%

Description : Gunmetal and bronze are not corroded by the action of (A) Wet chlorine (B) Synthetic detergent solution (C) Hydrochloric acid (10%) (D) Nitric acid (< 25%

Last Answer : (B) Synthetic detergent solution

Out of the following, copper vessels are the most suitable for the storage of (A) Bromine (B) Dry chlorine & dry fluorine (C) Nitric acid (95% and fuming) (D) Phosphoric acid (95%) & sulphuric acid (95% and fuming)

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Last Answer : (B) Dry chlorine & dry fluorine

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

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

Neutraliser tank used for reacting nitric acid with ammonia for the production of ammonium nitrate is made of (A) Aluminium (B) Stainless steel (C) High silicon (14%) iron (D) Copper

Description : Neutraliser tank used for reacting nitric acid with ammonia for the production of ammonium nitrate is made of (A) Aluminium (B) Stainless steel (C) High silicon (14%) iron (D) Copper

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Aqueous nitric acid is stored in __________ vessel. (A) Plain carbon steel (B) Stainless steel (C) Cast iron (D) Thermosetting plastic material

Description : Aqueous nitric acid is stored in __________ vessel. (A) Plain carbon steel (B) Stainless steel (C) Cast iron (D) Thermosetting plastic material

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Lead lined equipments & vessels are suitable for handling (A) Hydrochloric acid (10%) (B) Nitric acid (C) Sulphuric acid upto 60°C (D) All (A), (B) and (C)

Description : Lead lined equipments & vessels are suitable for handling (A) Hydrochloric acid (10%) (B) Nitric acid (C) Sulphuric acid upto 60°C (D) All (A), (B) and (C)

Last Answer : (C) Sulphuric acid upto 60°C