Mixture of which pair of gases is the cause of occurrence of most of the explosions in mines? -Do You Know?

Mixture of which pair of gases is the cause of occurrence of most of the explosions in mines? -Do You Know?
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Mixture of which pair of gases is the cause of occurrence of most of the explosions in mines?

Description : Mixture of which pair of gases is the cause of occurrence of most of the explosions in mines?

Last Answer : Methane and air

Most of the explosions in mines occur due to the mixing of things? -Do You Know?

Description : Most of the explosions in mines occur due to the mixing of things? -Do You Know?

Last Answer : answer:

The gas that usually causes explosions in coal mines is - (1) Hydrogen (2) Carbon monoxide (3) Air (4) Methane

Description : The gas that usually causes explosions in coal mines is - (1) Hydrogen (2) Carbon monoxide (3) Air (4) Methane

Last Answer : (4) Methane Explanation: Methane is extremely flammable and may form explosive mixtures with air. Methane is violently reactive with oxidizers, halogens, and some halogen-containing compounds. Methane gas explosions are responsible for many deadly mining disasters.

The gas usually causing explosions in coal mines is – (1) Hydrogen (2) Carbon monoxide (3) Air (4) Methane

Description : The gas usually causing explosions in coal mines is – (1) Hydrogen (2) Carbon monoxide (3) Air (4) Methane

Last Answer : (4) Methane Explanation: Firedamp is flammable gas found in coal mines. It is the name given to a number of flammable gases, especially methane.

Most of the explosions in mines occur due to the mixing of things?

Description : Most of the explosions in mines occur due to the mixing of things?

Last Answer : Oxygen with acetylene

1. Most of the explosions in mines occur due to the mixing of things? 2. Which is the ‘Slack Season’ in the Indian Economy? 3. Which metal causes Itai-itai disease? 4. Which state is the percentage of forest area to total geographical area the highest? 5. Who was the most radia of the Bhakti Saints?

Description : 1. Most of the explosions in mines occur due to the mixing of things? 2. Which is the Slack Season' in the Indian Economy? 3. Which metal causes Itai-itai disease? 4. Which state is ... area of the world? 20. From where The Great Granary of the Indus Valley Civilization has been discovered?

Last Answer : Answer : 1. Oxygen with acetylene 2. Jan.-June 3. Cadmium 4. Arunachal Pradesh 5. Kabir 6. 40,000 7. Directive Principles 8. A pin hole box 9. Cirques 10. 1764 11. 1946 12. Cost of ... process 15. Lord Amherst 16. Habeas Corpus 17. Sand and silicates 18. 1874 19. Pastoral herding 20. Mohenjodaro

The gas that usually causes explosions in coal mines is (1) Hydrogen (2) Carbon monoxide (3) Air (4) Methane

Description : The gas that usually causes explosions in coal mines is (1) Hydrogen (2) Carbon monoxide (3) Air (4) Methane

Last Answer : Methane

A breakable, mercury-filled thermometer should not be used in a lead-acid battery to measure electrolyte temperature, as an accidental breakage can cause ____________. A. severe sparking and explosions B. rapid oxidation of battery plates C. violent gassing at the positive plates D. corrosion on the battery terminals

Description : A breakable, mercury-filled thermometer should not be used in a lead-acid battery to measure electrolyte temperature, as an accidental breakage can cause ____________. A. severe sparking and explosions ... battery plates C. violent gassing at the positive plates D. corrosion on the battery terminals

Last Answer : Answer: A

Mercury filled thermometers should never be used to determine the temperature of the battery electrolyte because accidental breakage of the thermometer can cause __________________. A. severe sparking and explosions B. rapid oxidation of battery plates C. contamination of the electrolyte D. corrosion on the battery terminals

Description : Mercury filled thermometers should never be used to determine the temperature of the battery electrolyte because accidental breakage of the thermometer can cause __________________. A. severe sparking and ... of battery plates C. contamination of the electrolyte D. corrosion on the battery terminals

Last Answer : Answer: A

Cooking gas is a mixture of which gases? -Do You Know?

Description : Cooking gas is a mixture of which gases? -Do You Know?

Last Answer : answer:

Which environment leads to the occurrence of acid rain? -Do You Know?

Description : Which environment leads to the occurrence of acid rain? -Do You Know?

Last Answer : answer:

The gas that usually cause explosion in coal mines is

Description : The gas that usually cause explosion in coal mines is

Last Answer : Methane (CH4)

Why are explosions awesome? (Details )

Description : Why are explosions awesome? (Details )

Last Answer : Because of the power released in a fraction of a second.

What do bacteria and supernova explosions have in common?

Description : What do bacteria and supernova explosions have in common?

Last Answer : It would be even more interesting to do a similar analysis on each one of us and find out what cosmic event we were “related” to. Thus making us true “Children of the Stars”. A sort of legitimate astrology.

How many atomic explosions have there been?

Description : How many atomic explosions have there been?

Last Answer : The US has performed almost 10,000 nuclear tests, one can assumethat the USSR has also performed a similar number. No othercountries have performed more than a couple hundred nucleartests.Not all of ... Test in New Mexico and the two bombs dropped in combat overJapan (Hiroshima & Nagasaki).

Why does a aerial firework require two explosions of black powder?

Description : Why does a aerial firework require two explosions of black powder?

Last Answer : to launch aerials and also causes the explosions necessary for special effects like noise or colored light.

The escape velocity from the earth’s surface is about 1. 30 km/sec 2. 6 km/sec 3. 11.2 km/sec 4. 300 km/sec 15. The radiant energy of the sun is due to (a) Nuclear fission (b) Nuclear fusion (c) Sinking of the sun (d) Violent explosions

Description : The escape velocity from the earth’s surface is about 1. 30 km/sec 2. 6 km/sec 3. 11.2 km/sec 4. 300 km/sec 15. The radiant energy of the sun is due to (a) Nuclear fission (b) Nuclear fusion (c) Sinking of the sun (d) Violent explosions

Last Answer : Ans:(c)

State disadvantage of Supercritical boiler. a. Corrosion problem b. Setting of material in feed lines can produce explosions c. Leakage problem d. All

Description : State disadvantage of Supercritical boiler. a. Corrosion problem b. Setting of material in feed lines can produce explosions c. Leakage problem d. All

Last Answer : d. All

What causes earthquakes? (a) Occurrence of underground water (b) Volcanic eruptions (c) Occurrence of cracks and fissures in rocks (d) No definite cause has been found so far

Description : What causes earthquakes? (a) Occurrence of underground water (b) Volcanic eruptions (c) Occurrence of cracks and fissures in rocks (d) No definite cause has been found so far

Last Answer : Ans: (b)

Which of the following diseases is a chronic, degenerative, progressive disease of the central nervous system characterized by the occurrence of small patches of demyelination in the brain and spinal cord? a) Multiple sclerosis The cause of MS is not known and the disease affects twice as many women as men.

Description : Which of the following diseases is a chronic, degenerative, progressive disease of the central nervous system characterized by the occurrence of small patches of demyelination in the brain and ... the central nervous system characterized by spongiform degeneration of the gray matter of the brain.

Last Answer : a) Multiple sclerosis The cause of MS is not known and the disease affects twice as many women as men.

As we have seen with Hurricane Andrew, natural forces can cause great loss of human life. Which of the following natural disasters has resulted in the greatest loss of human life in a single occurrence? w) typhoon x) volcanic eruption y) earthquake z) tornado

Description : As we have seen with Hurricane Andrew, natural forces can cause great loss of human life. Which of the following natural disasters has resulted in the greatest loss of human life in a single occurrence? w) typhoon x) volcanic eruption y) earthquake z) tornado

Last Answer : ANSWER: Y -- EARTHQUAKE (ON JANUARY 23, 1556, 830,000 PEOPLE DIED IN SHENSI, CHINW)

For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3 ), while the C.V. is same on weight basis (i.e., kcal/kg)? (A) Propane and acetylene (B) Propane and LPG (C) Sewage gas and gobar gas (D) B.F. gas and coke oven gas

Description : For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3 ), while the C.V. is same on weight basis (i.e., kcal/kg)? (A) Propane and acetylene (B) Propane and LPG (C) Sewage gas and gobar gas (D) B.F. gas and coke oven gas

Last Answer : (A) Propane and acetylene

For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3) while the C.V. is same on weight basis (i.e., kcal/kg)? (A) Propane and acetylene (B) Propane and LPG (C) Sewage gas and gobar gas (D) B.F gas and coke oven gas

Description : For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3) while the C.V. is same on weight basis (i.e., kcal/kg)? (A ... and acetylene (B) Propane and LPG (C) Sewage gas and gobar gas (D) B.F gas and coke oven gas

Last Answer : D) B.F gas and coke oven gas

When radiation breaks an electron pair bond in a molecule and each fragment of the molecule gets one of the bond electrons, the molecular fragments that are formed are called: w) ions x) free radicals y) stable molecules z) gases

Description : When radiation breaks an electron pair bond in a molecule and each fragment of the molecule gets one of the bond electrons, the molecular fragments that are formed are called: w) ions x) free radicals y) stable molecules z) gases

Last Answer : ANSWER: X -- FREE RADICALS

Which gases mixture does the diver carry to breathe under water? -General Knowledge

Description : Which gases mixture does the diver carry to breathe under water? -General Knowledge

Last Answer : The mixture of gases used by deep-sea divers is helium-oxygen.

Assertion :- A gas mixed with another gas forms a colloidal solution. Reason :- Mixture of gases is homogenous system.

Description : Assertion :- A gas mixed with another gas forms a colloidal solution. Reason :- Mixture of gases is homogenous system.

Last Answer : Assertion :- A gas mixed with another gas forms a colloidal solution. Reason :- Mixture of gases is ... . D. If both Assertion & Reason are False.

A mixture of gases contain `H_(2)` and `O_(2)` gases in the ratio of 1 : 4 (w/w). What is the molar ratio of the two gases in the mixture ?

Description : A mixture of gases contain `H_(2)` and `O_(2)` gases in the ratio of 1 : 4 (w/w). What is the molar ratio of the two gases in the mixture ?

Last Answer : A mixture of gases contain `H_(2)` and `O_(2)` gases in the ratio of 1 : 4 (w/w). What is the molar ratio of the ... : 1 B. 2 : 1 C. 1 : 4 D. 4 : 1

A pale bule liquid is obtained by equuimolar mixture of two gases at - `30^(circ)C`.

Description : A pale bule liquid is obtained by equuimolar mixture of two gases at - `30^(circ)C`.

Last Answer : A pale bule liquid is obtained by equuimolar mixture of two gases at - `30^(circ)C`. A. `N_(2)O` B. `N_(2)O_(3)` C. `N_(2)O_(4)` D. `N_(2)O_(5)`

A pale bule liquid is obtained by equuimolar mixture of two gases at - `30^(circ)C`.

Description : A pale bule liquid is obtained by equuimolar mixture of two gases at - `30^(circ)C`.

Last Answer : A pale bule liquid is obtained by equuimolar mixture of two gases at - `30^(circ)C`. A. `N_(2)O` B. `N_(2)O_(3)` C. `N_(2)O_(4)` D. `N_(2)O_(5)`

Sea divers go deep in the sea water with a mixture of which of the following gases

Description : Sea divers go deep in the sea water with a mixture of which of the following gases

Last Answer : Sea divers go deep in the sea water with a mixture of which of the following gases A. `O_(2)` and He B. `O_(2 ... (2)` and `CO_(2)` D. `CO_(2)` and Ar

A mixture of two gases `AsH_(3)` and `SbH_(3)` is passed through a tube heated at the middle position. Two mirror like depositions are observed of whi

Description : A mixture of two gases `AsH_(3)` and `SbH_(3)` is passed through a tube heated at the middle position. Two mirror like depositions are observed of whi

Last Answer : A mixture of two gases `AsH_(3)` and `SbH_(3)` is passed through a tube heated at the middle position. Two ... As B. As and Sb C. Both As D. Both Sb

If 48.0 g of O2 and 4.4 g of CO2 are placed in a 10.0 L container at 21c. what is the pressure of mixture of gases?

Description : If 48.0 g of O2 and 4.4 g of CO2 are placed in a 10.0 L container at 21c. what is the pressure of mixture of gases?

Last Answer : Need answer

If a mixture of two gases has a total pressure of 5.7 ATM. If one gas has a partial pressure of 4.1 ATM what is the partial pressure of the other gas?

Description : If a mixture of two gases has a total pressure of 5.7 ATM. If one gas has a partial pressure of 4.1 ATM what is the partial pressure of the other gas?

Last Answer : 1.6 ATM

What is a Mechanical mixture made up of solids and gases?

Description : What is a Mechanical mixture made up of solids and gases?

Last Answer : What is the answer ?

Van der Waals equation explains the behaviour of (a) Mixture of gases (b) Ideal gas (c) Real gas (d) Water gas

Description : Van der Waals equation explains the behaviour of (a) Mixture of gases (b) Ideal gas (c) Real gas (d) Water gas

Last Answer : Ans:(c)

Identify the correct statement with respect to Biogas. (1) Mixture of gases from volcanoes (2) Gas produced from certain crude oil wells (3) Gas produced by incomplete combustion of biomass (4) Gas produced by fermentertian of biomass

Description : Identify the correct statement with respect to Biogas. (1) Mixture of gases from volcanoes (2) Gas produced from certain crude oil wells (3) Gas produced by incomplete combustion of biomass (4) Gas produced by fermentertian of biomass

Last Answer : (4) Gas produced by fermentertian of biomass Explanation: Biogas is produced by the anaerobic digestion or fermentation of biodegradable materials such as biomass, manure, sewage, municipal waste, green waste ... (CO2) and may have small amounts of hydrogen sulphide (H2S), moisture and siloxanes.

In deep-sea diving, divers use a mixture of gases consisting of oxygen and – (1) hydrogen (2) nitrogen (3) argon (4) helium

Description : In deep-sea diving, divers use a mixture of gases consisting of oxygen and – (1) hydrogen (2) nitrogen (3) argon (4) helium

Last Answer : (2) nitrogen Explanation: Air is not the "ideal" breathing mixture for diving as with a concentration of approximately 79 percent nitrogen, compressed air poses two potential problems for all divers: ... Nitrox, a gaseous mixture of nitrogen and oxygen. It is also known as 'Enriched Air.'

Indane gas is a mixture of which gases? (1) butane and hydrogen (2) butane and propane (3) butane and oxygen (4) methane and oxygen

Description : Indane gas is a mixture of which gases? (1) butane and hydrogen (2) butane and propane (3) butane and oxygen (4) methane and oxygen

Last Answer : (2) butane and propane

Cooking gas is a mixture of which gases?

Description : Cooking gas is a mixture of which gases?

Last Answer : Butane and propane

Pick out the wrong statement. (A) The mole fraction of solute is directly proportional to the molality of a 'dilute' solution (B) For a non-reacting binary mixture of ideal gases, the partial pressure distribution of both components is nonlinear in the case of steady state unimolal unidirectional diffusion (C) Azeotropes obey Raoult's law at all temperature (D) The relative volatility of a binary mixture at the Azeotropic composition is 1

Description : Pick out the wrong statement. (A) The mole fraction of solute is directly proportional to the molality of a 'dilute' solution (B) For a non-reacting binary mixture of ideal gases, the partial ... at all temperature (D) The relative volatility of a binary mixture at the Azeotropic composition is 1

Last Answer : (C) Azeotropes obey Raoult's law at all temperature

Separation of a mixture of two gases by absorption in the liquid solvent depends upon the difference in their (A) Viscosity (B) Density (C) Solubility (D) Relative volatility

Description : Separation of a mixture of two gases by absorption in the liquid solvent depends upon the difference in their (A) Viscosity (B) Density (C) Solubility (D) Relative volatility

Last Answer : (C) Solubility

The diffusivity, DAB (for component A diffusing in B) is equal to the diffusivity DBA (for component B diffusing in A) for a binary mixture of (A) Newtonian liquids (B) Non-Newtonian liquids (C) Ideal gases (D) Real gases

Description : The diffusivity, DAB (for component A diffusing in B) is equal to the diffusivity DBA (for component B diffusing in A) for a binary mixture of (A) Newtonian liquids (B) Non-Newtonian liquids (C) Ideal gases (D) Real gases

Last Answer : (C) Ideal gases

Pick out the correct statement. (A) Higher hold up of the solid in the rotary dryer results in better exposure of the solids to the gas (B) The 'Hatta number' is important in problems involving gas absorption without chemical reaction (C) For a non-reacting binary mixture of ideal gases, the partial pressure distribution of both components is linear in the case of steady state equimolal counter-diffusion (D) Total reflux in case of distillation operation requires infinite number of plates for a binary system separation

Description : Pick out the correct statement. (A) Higher hold up of the solid in the rotary dryer results in better exposure of the solids to the gas (B) The 'Hatta number' is ... reflux in case of distillation operation requires infinite number of plates for a binary system separation

Last Answer : (C) For a non-reacting binary mixture of ideal gases, the partial pressure distribution of both components is linear in the case of steady state equimolal counter-diffusion

Which of the following processes is not an example of adsorption applied to gaseous separations? (A) Recovery of valuable solvent vapors from dilute mixture with air and other gases (B) Dehumidification of air and gas (C) Removal of objectionable odour and impurities from industrial gases (D) Decolouration of yellow glycerine

Description : Which of the following processes is not an example of adsorption applied to gaseous separations? (A) Recovery of valuable solvent vapors from dilute mixture with air and ... Removal of objectionable odour and impurities from industrial gases (D) Decolouration of yellow glycerine

Last Answer : (D) Decolouration of yellow glycerine

When the gas to be dissolved in liquid is a/an __________ then normally co-current adsorber are used. (A) Mixture of two gases (B) Pure gas (C) Ideal gas (D) Sparingly soluble gas

Description : When the gas to be dissolved in liquid is a/an __________ then normally co-current adsorber are used. (A) Mixture of two gases (B) Pure gas (C) Ideal gas (D) Sparingly soluble gas

Last Answer : (B) Pure gas

Two liquids manometer is used for measuring small pressure differences in (A) Liquids (B) Gases (C) Mixture of hydrocarbons (D) None of these

Description : Two liquids manometer is used for measuring small pressure differences in (A) Liquids (B) Gases (C) Mixture of hydrocarbons (D) None of these

Last Answer : (A) Liquids

Which of the following gases is having the widest explosion limit (about 2 to 81% gas in gas-air mixture), rendering it the property of the most explosive gas? (A) Hydrogen (B) Acetylene (C) Carbon monoxide (D) Ammonia

Description : Which of the following gases is having the widest explosion limit (about 2 to 81% gas in gas-air mixture), rendering it the property of the most explosive gas? (A) Hydrogen (B) Acetylene (C) Carbon monoxide (D) Ammonia

Last Answer : (B) Acetylene

Pick out the wrong statement. (A) Activity co-efficient is dimensionless. (B) In case of an ideal gas, the fugacity is equal to its pressure. (C) In a mixture of ideal gases, the fugacity of a component is equal to the partial pressure of the component. (D) The fugacity co-efficient is zero for an ideal gas

Description : Pick out the wrong statement. (A) Activity co-efficient is dimensionless. (B) In case of an ideal gas, the fugacity is equal to its pressure. (C) In a mixture of ideal gases, the fugacity of ... equal to the partial pressure of the component. (D) The fugacity co-efficient is zero for an ideal gas

Last Answer : (D) The fugacity co-efficient is zero for an ideal gas

Fugacity is a measure of the (A) Escaping tendencies of the same substance in different phases of a system (B) Relative volatility of a mixture of two miscible liquids (C) Behaviour of ideal gases (D) None of these

Description : Fugacity is a measure of the (A) Escaping tendencies of the same substance in different phases of a system (B) Relative volatility of a mixture of two miscible liquids (C) Behaviour of ideal gases (D) None of these

Last Answer : (A) Escaping tendencies of the same substance in different phases of a system

'GASOHOL' widely used in Brazil as a motor fuel is a mixture of alcohol and (A) Petrol (B) LPG (C) Light hydrocarbon gases (e.g. butane or propane) (D) None of these

Description : 'GASOHOL' widely used in Brazil as a motor fuel is a mixture of alcohol and (A) Petrol (B) LPG (C) Light hydrocarbon gases (e.g. butane or propane) (D) None of these

Last Answer : (A) Petrol