Chemistry

Chemistry of Gases and Applications

1,190 Questions

The chemistry of gases covers atmospheric composition, noble gases, and various applications of gas compounds in industrial and biological processes. Understanding the properties of common gases, their reactions, and environmental occurrences is vital for general science sections. Use these questions to practice identifying gases and their specific uses.

Atmospheric gasesNoble gasesGas applicationsChemical compounds

Chemistry of Gases and Applications Questions

Multiple choice evs - i what is around us? atmosphere and its structures the atmosphere components of earth elements of weather and climate : temperature the earth's structure

Which of the following gas is present in large quantity in atmosphere?

  1. Oxygen

  2. Hydrogen

  3. Nitrogen

  4. Methane
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Atmosphere is the layer of gases surrounding the planet. The major gases present in atmosphere are nitrogen, oxygen, argon, carbon dioxide and other gases in minute quantity. Among all the gases present in atmosphere, nitrogen constitutes highest amount. Percentage of nitrogen present in atmosphere is 78.

Multiple choice geography what is around us? atmosphere and its structures the atmosphere components of earth elements of weather and climate : temperature the earth's structure

The most abundant constituent of dry air in terms of volume is ________.

    1. carbon dioxide

    2. nitrogen

    3. oxygen

    4. none of these
    Reveal answer Fill a bubble to check yourself
    B Correct answer
    Explanation

    Nitrogen is important gas of which about 78% of the atmosphere's volume is made up. Nitrogen serves mainly as a diluent. It is relatively inactive chemically, though many f its compounds are very active. Its main function in the atmosphere is to regulate combustion by diluting oxygen. It also indirectly helps in oxidation of different kinds.

    Multiple choice separation of components of mixtures methods of separation elements, compounds and mixtures chemistry

    Liquefaction of gases helps in :

    1. storing a gas in a compact form

    2. transporting a gas easily

    3. both a and b

    4. none of above
    Reveal answer Fill a bubble to check yourself
    C Correct answer
    Explanation

    The most important advantage of liquefying gases is that they can then be stored and transported in much more compact form than in the gaseous state. Two kinds of liquefied gases are widely used commercially for this reason, liquefied natural gas (LNG) and liquefied petroleum gas (LPG).

    Multiple choice evs - i substances, objects and energy renewable and non-renewable resources renewable and non-renewable sources of energy solar energy and its applications renewable resources alternative fuels and energy sources alternative sources of energy

    Producer gas is a mixture of.

    1. carbon monoxide and nitrogen gas

    2. carbon monoxide and hydrogen gas

    3. carbon monoxide and water vapor

    4. carbon monoxide and nitrous oxide
    Reveal answer Fill a bubble to check yourself
    A Correct answer
    Explanation

    Producer gas is an industrial fuel gas consisting primarily of carbon monoxide and nitrogen gas, typically produced by passing air over red-hot coke.

    Multiple choice evs - i substances, objects and energy renewable resources alternative fuels and energy sources alternative sources of energy

    Which of the following is not a gaseous fuel?

    1. CNG

    2. Coal gas and water gas

    3. Gobar gas and acetylene

    4. Liquid hydrogen.
    Reveal answer Fill a bubble to check yourself
    D Correct answer
    Explanation
    Solid fuels include peat, coal, wood, biomass.
    Liquid fuels include petroleum, alcohol.
    Gaseous fuel includes natural gas.
    Liquid hydrogen (LH2 or LH2) is the liquid state of the element hydrogen.
    Multiple choice evs - i substances, objects and energy renewable resources alternative fuels and energy sources alternative sources of energy

    Hydrogen is not used as a household fuel because:

    1. it is highly combustible gas

    2. its transportation is difficult

    3. Is not easily available

    4. all of these are true
    Reveal answer Fill a bubble to check yourself
    D Correct answer
    Explanation
    Though hydrogen has the highest calorific value, it is not used as a household fuel because:
    1. It is not easily available and this makes it costly too.
    2. It is highly combustible.
    3. Transportation is difficult.
    Multiple choice various types of barometer fluids physics

    Most commonly known barometric fluid is

    1. Mercury

    2. Liquid oxygen

    3. Nitrogen

    4. Ammonia
    Reveal answer Fill a bubble to check yourself
    A Correct answer
    Explanation

    The first reason to use mercury is its high density. The atmospheric pressure measured by mercury barometer is the pressure equal to that at the bottom of the mercury column given by $h\rho g$.

    Due to high value of $\rho$ the same pressure can be measured for smaller value of $h$.
    Also the vapor pressure of mercury is negligible, due to which the barometric height is not affected.

    Multiple choice chemistry water drying and dehydrating agents hydrolysis of salts and the ph of their solutions chemical equilibrium and acids-bases

    Which of the following salts on heating gives a mixture of two gases?

    1. $Ba(NO _3) _2$
    2. $NaNO _3$
    3. $KNO _3$
    4. $RbNO _3$
    Reveal answer Fill a bubble to check yourself
    A Correct answer
    Explanation

    $(A)$  $Ba(NO _3) _2$


    $Reason$ :  The elements in the group 2 includes beryllium($Be$), magnesium($Mg$), calcium($Ca$), strontium($Sr$), barium($Ba$) and radium($Ra$).
    The group 2 nitrates, on heating, gives metal oxide, nitrogen dioxide and oxygen gas.
    For example - $2Ba(NO _3) _2(s)$ $\rightarrow$ $2BaO(s)$ + $4NO _2(g)$ + $O _2(g)$
    Group 2 nitrates also become more thermally stable down the group.