How many grams are there in 4.50 moles of barium nitrite?

How many grams are there in 4.50 moles of barium nitrite?
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Last Answer : Nitrite Yojani 1.

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Last Answer : In the diazotisation of anline with sodium nitrite and hydrochloride acid, an excess of ... nitrous acid D. neutralize the base liberated

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Description : Dinitrogen gas is evolved when sodium nitrite is heated below `500^(º)C`

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Dinitrogen gas is evolved when sodium nitrite is heated below `500^(º)C`

Description : Dinitrogen gas is evolved when sodium nitrite is heated below `500^(º)C`

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A compound is made by mixing cobalt (III) nitrite and potassium nitrite solutions in the ratio of 1:3. The aqueous solution of the compound showed 4 p

Description : A compound is made by mixing cobalt (III) nitrite and potassium nitrite solutions in the ratio of 1:3. The aqueous solution of the compound showed 4 p

Last Answer : A compound is made by mixing cobalt (III) nitrite and potassium nitrite solutions in the ratio of 1:3. The aqueous ... )]` D. `K[Co(NO_(2))_(4)]`

Consider the following reaction, Nitrite + Acetic acid + Thiourea `to Na_(2) uarr + HSCN +2H_(2)O`. Formation of the product in the above reaction can

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Last Answer : Consider the following reaction, Nitrite + Acetic acid + Thiourea `to Na_(2) uarr + HSCN +2H_(2)O ... (4)// HCl`, when colourless solution is formed.

Nitrate & Nitrite both give brown ring test, can be distinguish by -

Description : Nitrate & Nitrite both give brown ring test, can be distinguish by -

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What is Tin II nitrite?

Description : What is Tin II nitrite?

Last Answer : Tin (ii) Nitrite also called Stannous Nitrite, has the formula Sn(NO2)2 and a molar mass of 210.721

How many iron(II) ions combine with Nitrogen to form iron(II)nitrite?

Description : How many iron(II) ions combine with Nitrogen to form iron(II)nitrite?

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Under anaerobic conditions, bacterium Pseudomonas changes (a) Nitrate to molecular nitrogen (b) Nitrate to ammonia (c) Nitrate to nitrite (d) Nitrite to nitrate

Description : Under anaerobic conditions, bacterium Pseudomonas changes (a) Nitrate to molecular nitrogen (b) Nitrate to ammonia (c) Nitrate to nitrite (d) Nitrite to nitrate

Last Answer : Ans. ((a))

Which of the following is a vasodilator drug used for hypertension that lacks a direct effect on autonomic receptors but may provoke anginal attacks? (a) Amyl nitrite (b) Hydralazine (c) Isosorbide mononitrate (d) Nifedipine (e) Nimodipine

Description : Which of the following is a vasodilator drug used for hypertension that lacks a direct effect on autonomic receptors but may provoke anginal attacks? (a) Amyl nitrite (b) Hydralazine (c) Isosorbide mononitrate (d) Nifedipine (e) Nimodipine

Last Answer : Ans: B

Which of the following drugs used for the treatment of angina by inhalation has a very rapid onset and a brief duration of effect ? (a) Amyl nitrite (b) Hydralazine (c) Isosorbide mononitrate (d) Nifedipine (e) Nimodipine

Description : Which of the following drugs used for the treatment of angina by inhalation has a very rapid onset and a brief duration of effect ? (a) Amyl nitrite (b) Hydralazine (c) Isosorbide mononitrate (d) Nifedipine (e) Nimodipine

Last Answer : Ans: A

Which of the following is approved for the treatment of hemorrhagic stroke ? (a) Amyl nitrite (b) Hydralazine (c) Isosorbide moninitrate (d) Nifedipine (e) Nimodipine

Description : Which of the following is approved for the treatment of hemorrhagic stroke ? (a) Amyl nitrite (b) Hydralazine (c) Isosorbide moninitrate (d) Nifedipine (e) Nimodipine

Last Answer : Ans: E

The agent given sublingually in an acute attack of angina pectoris is (a) Glyceryl trinitrate (b) Amyl nitrite (c) Erythrital tetranitrate (d) Pentaerythritol tetranitrate

Description : The agent given sublingually in an acute attack of angina pectoris is (a) Glyceryl trinitrate (b) Amyl nitrite (c) Erythrital tetranitrate (d) Pentaerythritol tetranitrate

Last Answer : Ans: A

(3) Conversion of ammonia to nitrites Explanation: Nitrification is the biological oxidation of ammonia or ammonium to nitrite followed by the oxidation of the nitrite to nitrate. The oxidation of ammonia into nitrite is performed by two groups of organisms, ammonia-oxidizing bacteria AOB) and ammonia-oxidizing archaea (AOA). Nitrification is an important step in the nitrogen cycle in soil.

Description : (3) Conversion of ammonia to nitrites Explanation: Nitrification is the biological oxidation of ammonia or ammonium to nitrite followed by the oxidation of the nitrite to nitrate. The oxidation of ammonia ... -oxidizing archaea (AOA). Nitrification is an important step in the nitrogen cycle in soil.

Last Answer : Acid rain is caused due to pollution of atmosphere by – (1) oxides of carbon and nitrogen (2) oxides of nitrogen and sulphur (3) oxides of nitrogen and phosphorous (4) None of these

Which of the following is an iron ore? (1) Bauxite (2) Magnetite (3) Lignite (4) Nitrite

Description : Which of the following is an iron ore? (1) Bauxite (2) Magnetite (3) Lignite (4) Nitrite

Last Answer : (2) Magnetite Explanation: Magnetite is a 'mineral, one of the two common naturally occurring oxides of Iron. It is the most magnetic of all the naturally occurring minerals on Earth.

Which of the following molecules or ions involved in the Nitrogen Cycle do not contain oxygen atom? (1) Nitrite (2) Ammonia (3) Nitrate (4) Laughing gas

Description : Which of the following molecules or ions involved in the Nitrogen Cycle do not contain oxygen atom? (1) Nitrite (2) Ammonia (3) Nitrate (4) Laughing gas

Last Answer : (2) Ammonia

Chile saltpeter is the common name of: (1) Sodium nitrate (2) Potassium nitrite (3) Potassium nitrate (4) Sodium nitrite

Description : Chile saltpeter is the common name of: (1) Sodium nitrate (2) Potassium nitrite (3) Potassium nitrate (4) Sodium nitrite

Last Answer : (1) Sodium nitrate Explanation: Sodium Nitrate (NaNO3) is also known as Chile saltpeter or Peru saltpeter (due to the large deposits found in the Atacama desert in these countries) to ... , pyrotechnics and smoke bombs, glass and pottery enamels, food preservatives, and solid rocket propellant.

Nitrogen in water is commonly found in the form of - (1) Nitrous oxide (2) Nitrate (3) Nitric oxide (4) Nitrite

Description : Nitrogen in water is commonly found in the form of - (1) Nitrous oxide (2) Nitrate (3) Nitric oxide (4) Nitrite

Last Answer : (2) Nitrate Explanation: Nitrate (NO3) is the most common form of inorganic nitrogen in unpolluted waters. Nitrate moves readily through soils and into ground water, where concentrations can be much higher than in surface waters. Water in coastal areas mainly contains elementary nitrogen gas (N2).

Nitrification is the biological process of converting – (1) N9 into nitrate (2) N2 into nitrite (3) Ammonia into nitrite (4) Ammonia into N2

Description : Nitrification is the biological process of converting – (1) N9 into nitrate (2) N2 into nitrite (3) Ammonia into nitrite (4) Ammonia into N2

Last Answer : (3) Ammonia into nitrite Explanation: Nitrification is the biological oxidation of ammonia or ammonium to nitrite followed by the oxidation of the nitrite to nitrate. The transformation of ammonia ... limiting step of nitrification. Nitrification is an important step in the nitrogen cycle in soil.

What is the chemical name for `Baking Soda'? (1) Sodium carbonate (2) Sodium bicarbonate (3) Sodium nitrite (4) Sodium nitrate

Description : What is the chemical name for `Baking Soda'? (1) Sodium carbonate (2) Sodium bicarbonate (3) Sodium nitrite (4) Sodium nitrate

Last Answer : (2) Sodium bicarbonate Explanation: Sodium bicarbonate or sodium hydrogen carbonate is the chemical compound with the formula NaHCO3. Sodium bicarbonate is a white solid that is crystalline but often ... It has a slightly salty, alkaline taste resembling that of washing soda (sodium carbonate).

If by radiation all nitrogenase enzyme are inactivated, then there will be no (a) fixation of nitrogen in legumes (b) fixation of atmospheric nitrogen (c) conversion from nitrate to nitrite in legumes (d) conversion from ammonium to nitrate in soil.

Description : If by radiation all nitrogenase enzyme are inactivated, then there will be no (a) fixation of nitrogen in legumes (b) fixation of atmospheric nitrogen (c) conversion from nitrate to nitrite in legumes (d) conversion from ammonium to nitrate in soil.

Last Answer : (a) fixation of nitrogen in legumes

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

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

Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in (A) Coagulation and flocculation of colloids (B) Oxidation of carbonaceous matter to CO2 (C) Nitrification or oxidation of ammonia derived from breakdown of nitrogenous organic matter to the nitrite and eventually to the nitrate (D) All (A), (B) and (C)

Description : Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in (A) Coagulation and flocculation of colloids (B) Oxidation of carbonaceous matter to CO2 (C) ... to the nitrite and eventually to the nitrate (D) All (A), (B) and (C)

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

Aniline reacts with nitrous acid at low temperatures to give (a) a N-nitrosoamine (b) a nitrile (c) a diazonium salt (d) a nitrite salt

Description : Aniline reacts with nitrous acid at low temperatures to give (a) a N-nitrosoamine (b) a nitrile (c) a diazonium salt (d) a nitrite salt

Last Answer : a diazonium salt

What does airbag, used for safety of car driver, contain? A. Sodium bicarbonate B. Sodium azide C. Sodium nitrite D. Sodium peroxide

Description : What does airbag, used for safety of car driver, contain? A. Sodium bicarbonate B. Sodium azide C. Sodium nitrite D. Sodium peroxide

Last Answer : B. Sodium azide

The antidotal effect of sodium nitrite in cyanide poisoning is dependent upon: A. Chemical combination of sodium nitrite with cyanide B. Vasodilatation caused by sodium nitrite C. Conversion of haemoglobin to methaemoglobin by sodium nitrite D. Facilitation of cyanocobalamine formation by sodium nitrite

Description : The antidotal effect of sodium nitrite in cyanide poisoning is dependent upon: A. Chemical combination of sodium nitrite with cyanide B. Vasodilatation caused by sodium nitrite C. ... haemoglobin to methaemoglobin by sodium nitrite D. Facilitation of cyanocobalamine formation by sodium nitrite

Last Answer : C. Conversion of haemoglobin to methaemoglobin by sodium nitrite

The antidotal action of sodium nitrite in cyanide poisoning is based on: A. Physical antagonism B. Chemical antagonism C. Physiological antagonism D. Noncompetitive antagonism

Description : The antidotal action of sodium nitrite in cyanide poisoning is based on: A. Physical antagonism B. Chemical antagonism C. Physiological antagonism D. Noncompetitive antagonism

Last Answer : B. Chemical antagonism

The antidotal action of sodium nitrite in cyanide poisoning is based on: A. Physical antagonism B. Chemical antagonism C. Physiological antagonism D. Noncompetitive antagonism

Description : The antidotal action of sodium nitrite in cyanide poisoning is based on: A. Physical antagonism B. Chemical antagonism C. Physiological antagonism D. Noncompetitive antagonism

Last Answer : B. Chemical antagonism