Different proportions of oxygen in the various
oxides of nitrogen proves the
[MP PMT 1985]
 (A) Equivalent proportion
 (B) Multiple proportion
 (C) Constant proportion
 (D) Conservation of matter

1 Answer

Answer :

(B) Multiple proportion

Related questions

Description : Chemical equation is balanced according to the law of [AMU 1984] (A) Multiple proportion (B) Reciprocal proportion (C) Conservation of mass (D) Definite proportions

Last Answer : (C) Conservation of mass

Description : A sample of pure carbon dioxide, irrespective of its source contains 27.27% carbon and 72.73% oxygen. The data supports [AIIMS 1992] (A) Law of constant composition (B) Law of conservation of mass (C) Law of reciprocal proportions (D) Law of multiple proportions

Last Answer : (A) Law of constant composition

Description : Which property of an element is always a whole number? [MP PMT 1986] (A) Atomic weight (B) Equivalent weight (C) Atomic number (D) Atomic volume

Last Answer : (C) Atomic number

Description : Equivalent weight of crystalline oxalic acid is [MP PMT 1995] (A) 30 (B) 63 (C) 53 (D) 45

Last Answer : (B) 63

Description : If two compounds have the same empirical formula but different molecular formula, they must have [MP PMT 1986] (A) Different percentage composition (B) Different molecular weights (C) Same viscosity (D) Same vapour density

Last Answer : (B) Different molecular weights

Description : Two samples of lead oxide were separately reduced to metallic lead by heating in a current of hydrogen. The weight of lead from one oxide was half the weight of lead obtained from the other oxide. ... (B) Law of constant proportions (C) Law of multiple proportions (D) Law of equivalent proportions

Last Answer : (C) Law of multiple proportions

Description : The law of definite proportions is not applicable to nitrogen oxide because [EAMCET 1981] (A) Nitrogen’s atomic weight is not constant (B) Nitrogen’s molecular weight is variable (C) Nitrogen’s equivalent weight is variable (D) Oxygen’s atomic weight is variable

Last Answer : (C) Nitrogen’s equivalent weight is variable

Description : After a chemical reaction, the total mass of reactants and products [MP PMT 1989] (A) Is always increased (B) Is always decreased (C) Is not changed (D) Is always less or more

Last Answer : (C) Is not changed

Description : An imbalanced chemical reaction equation is against the law of (A) Multiple proportion (B) Conservation of mass (C) Constant proportion (D) None of these

Last Answer : (B) Conservation of mass

Description : Nitrogen forms the largest number of oxides as it is capable of forming stable multiple bonds with oxygen. They range from `N_(2)O` (O.S of nitrogen +

Last Answer : Nitrogen forms the largest number of oxides as it is capable of forming stable multiple bonds with ... red D. Nitrogen dioxide is not acidic oxide

Description : Nitrogen forms the largest number of oxides as it is capable of forming stable multiple bonds with oxygen. They range of `N_(2)O` (O.S of nitrogen +1)

Last Answer : Nitrogen forms the largest number of oxides as it is capable of forming stable multiple bonds with oxygen. They range ... C. `NO_(2)` D. both A and C

Description : Nitrogen forms the largest number of oxides as it is capable of forming stable multiple bonds with oxygen. They range from `N_(2)O` (O.S of nitrogen +

Last Answer : Nitrogen forms the largest number of oxides as it is capable of forming stable multiple bonds with ... red D. Nitrogen dioxide is not acidic oxide

Description : Nitrogen forms the largest number of oxides as it is capable of forming stable multiple bonds with oxygen. They range of `N_(2)O` (O.S of nitrogen +1)

Last Answer : Nitrogen forms the largest number of oxides as it is capable of forming stable multiple bonds with oxygen. They range ... C. `NO_(2)` D. both A and C

Description : What is Law of conservation of mass and Law of constant proportions? -Chemistry 9th

Last Answer : What is the Law of conservation of mass? Laws of conservation of mass - It states that mass can neither created nor destroyed. The total mass before and after a chemical reaction remains constant. ... that in a chemical substance the elements are always present in a fixed proportion by their mass.

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

Description : The law of multiple proportions was proposed by [IIT 1992] (A) Lavoisier (B) Dalton (C) Proust (D) Gay-Lussac

Last Answer : (B) Dalton

Description : Which of the following pairs of substances illustrate the law of multiple proportions? [CPMT 1972, 78] (A) CO and CO2 (B) H2O and D2O (C) NaCl and NaBr (D) MgO and Mg(OH)2

Last Answer : (A) CO and CO2

Description : The law of multiple proportions is illustrated by the two compounds [NCERT 1972] (A) Sodium chloride and sodium bromide (B) Ordinary water and heavy water (C) Caustic soda and caustic potash (D) Sulphur dioxide and sulphur trioxide

Last Answer : (D) Sulphur dioxide and sulphur trioxide

Description : Identify the air pollutant in urban areas which irritates eyes and also respiratory tract of human beings. (A) Particulate matter (B) Oxides of nitrogen (C) Surface ozone (D) Carbon monoxide

Last Answer : (C) Surface ozone

Description : Statement I Nitrogen and oxygen are the main components in the atmosphere but these do not react to form oxides of nitrogen. Statement II The reaction

Last Answer : Statement I Nitrogen and oxygen are the main components in the atmosphere but these do not react ... D. Both are assertion and reason are incorrect

Description : Statement I Nitrogen and oxygen are the main components in the atmosphere but these do not react to form oxides of nitrogen. Statement II The reaction

Last Answer : Statement I Nitrogen and oxygen are the main components in the atmosphere but these do not react ... D. Both are assertion and reason are incorrect

Description : Sulphur forms the chlorides S2Cl2 and SCl2. The equivalent mass of sulphur in SCl2 is [EAMCET 1985] (A) 8 g/mole (B) 16 g/mole (C) 64.8 g/mole (D) 32 g/mole

Last Answer : (D) 32 g/mole

Description : Explain the constituents of various gases in air and specify its proportions?

Last Answer : Air is a gas which is composed of various gases such as nitrogen, oxygen, carbondi-oxide, argon, etc. Nitrogen – 78% Oxygen – 21% Other gases – 1%

Description : Which of the following is the best example of law of conservation of mass? [NCERT 1975] (A) 12 g of carbon combines with 32 g of oxygen to form 44 g of CO2. (B) When 12 g of carbon is ... mass remains unaltered. (D) The weight of a piece of platinum is the same before and after heating in air.

Last Answer : (A) 12 g of carbon combines with 32 g of oxygen to form 44 g of CO2.

Description : (3) Oxides of nitrogen and sulphur Explanation: Acid rain is caused by emissions of oxides of Sulfur and Nitrogen (Sulfur Dioxide and Nitrogen Oxide), which react with the water molecules in the ... The emissions of sulfur dioxide (SO2) and nitrogen oxides (NOx) result from fossil fuel combustion.

Last Answer : (3) live wire and the neutral wire Explanation: Three wires enter most homes from the power pole-two "hot" wires and a third "neutral" wire. Each hot wire provides 120- volt current for ... the main switch is put off because the electric circuit (the path where the electricity travels) gets opened.

Description : (2) oxides of nitrogen and sulphur Explanation: Acid rain is caused by emissions of sulfur dioxide and nitrogen oxides, which react with the water molecules in the atmosphere to produce acids.

Last Answer : Neuron is - (1) Fundamental unit of energy (2) Particle released in radioactive emission (3) Antiparbcle of neutron (4) Fundamental unit of nervous system

Description : What are the components responsible for acid rain? (1) Nitrogen monoxide (NO) and Carbon monoxide (CO) (2) Sulphur dioxide (SO2) and Nitrogen oxides (NOx) (3) Carbon dioxide (CO2) and Carbon monoxide (CO) (4) Oxides of carbon (COx) and Oxides of nitrogen (NOx)

Last Answer : (2) Sulphur dioxide (SO2) and Nitrogen oxides (NOx) Explanation: Acid rain is caused by emissions of sulfur dioxide (SO2) and nitrogen oxide (NO), which react with the water molecules in the ... in acid rain can cause paint to peel, corrosion of steel structures and weathering of stone buildings.

Description : 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 phosphorus (4) None of these

Last Answer : (2) oxides of nitrogen and sulphur Explanation: Acid rain is caused by emissions of Sulpfur Dioxide (SO2) and Nitrogen Oxide (NOx), which react with the water molecules in the atmosphere to produce acids.

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 : Which of the following is not a gaseous air pollutant? (1) Oxides of nitrogen (2) Hydrocarbon (3) Smoke (4) Oxides of sulphur

Last Answer : (2) Hydrocarbon Explanation: The gaseous air pollutants of primary concern in urban settings include sulfur dioxide, nitrogen dioxide, and carbon monoxide; these are emitted directly into the air ... is also a pollutant. Hydrocarbon is an organic compound consisting entirely of hydrogen and carbon.

Description : Which of the following in auto-mobile exhaust can cause cancer? (1) Oxides of nitrogen (2) Carbon monoxide (3) Lead (4) Polyclinic hydrocarbons

Last Answer : (2) Carbon monoxide Explanation: Polycyclic aromatic hydrocarbons (PAHs) are formed during incomplete combustion. Domestic wood burning and road traffic are the major sources of PAHs. Exposure ... reactive diol epoxide intermediates and their subsequent covalent binding to critical targets in DNA.

Description : The constituents of automobile exhaust that can cause cancer is/are : (1) Oxides of nitrogen (2) Carbon monoxide (3) Polycyclic hydrocarbons (4) Lead

Last Answer : (2) Carbon monoxide Explanation: Lead is a naturally occuriing bluish-gray metal found in small amounts in the earth's crust. In the past, when lead was added to gasoline, breathing automobile ... found to be carcinogen. A substance that causes cancer or helps cancer grow is called a carcinogen.

Description : Global warming is mainly due to accumulation of – (1) Oxides of nitrogen (2) Oxides of sulphur (3) Carbon dioxide (4) Carbon monoxide

Last Answer : (3) Carbon dioxide Explanation: Global Warming refers to average increase in the earth's temperature due to increase in pollution which results in greenhouse effect which in turn leads to climate ... dioxide accumulate into the atmosphere and trap heat that would normally exit into the outer space.

Description : What are the components responsible for acid rain? (1) Nitrogen monoxide (NO) and Carbon monoxide (CO) (2) Sulphur dioxide (SO2 ) and Nitrogen oxides (NOx ) (3) Carbon dioxide (CO2 ) and Carbon monoxide (CO) (4) Oxides of carbon (COx ) and Oxides of nitrogen (NOx )

Last Answer : Sulphur dioxide (SO2 ) and Nitrogen oxides (NOx ) 

Description : Which of the following is not a gaseous air pollutant? (1) Oxides of nitrogen (2) Hydrocarbon (3) Smoke (4) Oxides of sulphur

Last Answer : Hydrocarbon

Description : 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

Last Answer : oxides of nitrogen and sulphur

Description : Which of the following in automobile exhaust can cause cancer? (1) Oxides of nitrogen (2) Carbon monoxide (3) Lead (4) Polyclinic hydrocarbons

Last Answer : Polyclinic hydrocarbons

Description : The constituents of automobile exhaust that can cause cancer is/are : (1) Oxides of nitrogen (2) Carbon monoxide (3) Polycyclic hydrocarbons (4) Lead

Last Answer : Lead

Description : Global warming is mainly due to accumulation of (1) Oxides of nitrogen (2) Oxides of sulphur (3) Carbon dioxide (4) Carbon monoxide

Last Answer : Carbon dioxide 

Description : Which one of the following pairs of compounds illustrates the law of multiple proportion? [EAMCET 1989] (A) H2O, Na2O (B) MgO, Na2O (C) Na2O, BaO (D) SnCl2, SnCl4

Last Answer : (D) SnCl2, SnCl4

Description : By whom was the law of constant proportions enunciated? -Do You Know?

Last Answer : answer:

Description : By whom was the law of constant proportions enunciated?

Last Answer : Proust

Description : 1. Who was the author of the famous work All Contributions to the Critic of Political Economy' ? 2. Nobel Prize winning scientist James D. Watson is known for his work in which area? 3. ... -around an axis pointing towards which side? 20. Which Sultan built the fifth storeys of Qutub Minar?

Last Answer : Answer : 1. Karl Marx 2. Genetics3. Proust 4. Tamil Nadu 5. Atharvaveda 6. Carbon monoxide 7. Lok Sabha 8. Creditors 9. Sindri 10. Nandas 11. Compiler 12. 819°C 13. DNA 14. July 4th 15. Amil 16. Judge of Supreme Court 17. Rome 18. Recession plus inflation 19. The pole star 20. Firoz Shah Tughlaq

Description : Which of the following type of coal has the lowest proportion of volatile matter? (1) Lignite (2) Peat (3) Bituminous (4) Anthracite

Last Answer : (4) Anthracite Explanation: Anthracite has the lowest proportion of volatile matter. Volatile matter in coal refers to the components of coal, except for moisture, which are liberated at ... hydrocarbons and some sulfur. The volatile matter of coal is determined under rigidly controlled standards.

Description : Which of the following type of coal has the lowest proportion of volatile matter ? (1) Lignite (2) Peat (3) Bituminous (4) Anthracite

Last Answer : Anthracite

Description : Where does the oxygen that keeps us alive come from? (1) Carbon dioxide (2) Carbonates absorbed from soil (3) Oxides of minerals (4) Water

Last Answer : (4) Water Explanation: Since water and carbon dioxide are both compounds which contain oxygen, it is possible to obtain oxygen from either. The oxygen produced from photosynthesis is not released into the ... the air. Scientists agree that there's oxygen from ocean plants in every breath we take.

Description : Oxygen which is vital for life is a product of photosynthesis and comes from – (1) carbonates from soil (2) carbon dioxide (3) water (4) oxides of mineral elements

Last Answer : (3) water Explanation: The unusually high concentration of oxygen has on Earth is the result of the oxygen cycle. This biogeochemical cycle describes the movement of oxygen within and ... Photosynthesis releases oxygen into the atmosphere, while respiration and decay remove it from the atmosphere.

Description : Oxygen which is vital for life is a product of photosynthesis and comes from (1) carbonates from soil (2) carbon dioxide (3) water (4) oxides of mineral elements

Last Answer : water

Description : Where does the oxygen that keeps us alive come from? (1) Carbon dioxide (2) Carbonates absorbed from soil (3) Oxides of minerals (4) Water

Last Answer : Water

Description : Have you suffered with acute PMS or PMT? ...not sure what the difference is... and if so how do you deal with it?

Last Answer : PMS = Pre Menstrual Syndrome PMT = Pre Menstrual Tension I think! I am not so much short fused but VERY emotional I even cry at t.v. adverts!!