Laws of Chemical Combinations
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CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306653 Which of the following represents Avogadro’s hypothesis?

1 Equal volumes of all gases under same condition of temperature and pressure contain equal number of atoms
2 Equal volumes of all gases under same condition of temperature and pressure contain equal number of molecules
3 Gases react together in volumes which bear a simple ratio to one another
4 The rates of diffusion of gases are inversely proportional to the square root of their densities
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306654 Assertion :
Under similar conditions of temperature and pressure, gases always combine in simple ratio of their volumes.
Reason :
Equal volumes of gases have equal
number of molecules at constant temperature and pressure

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306655 Equal masses of \({{\rm{H}}_{\rm{2}}}{\rm{,}}{{\rm{O}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{H}}_{\rm{4}}}\) have been taken in a container of volume V at temperature \({\rm{2}}{{\rm{7}}^{\rm{^\circ }}}{\rm{C}}\) in identical conditions. The ratio of the volume of gases \({{\rm{H}}_{\rm{2}}}{\rm{:}}{{\rm{O}}_{\rm{2}}}{\rm{:C}}{{\rm{H}}_{\rm{4}}}\) would be

1 \({\rm{8:16:1}}\)
2 \({\rm{16:8:1}}\)
3 \({\rm{16:1:2}}\)
4 \({\rm{8:1:2}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306656 Equal volumes of two different gases 1 and 2 with respective molecular masses \({\text{ }}{{\text{M}}_{\text{1}}}\,{\text{and }}{{\text{M}}_{\text{2}}}\) are at the same temperature \((\mathrm{T})\) and pressure (P). If \({{\text{M}}_{\text{1}}} > {{\text{M}}_{\text{2}}},\) then which of the following is true regarding the number of molecules \((\mathrm{N})\) ?

1 \(\mathrm{N}_{1}>\mathrm{N}_{2}\)
2 \(\mathrm{N}_{1}=\mathrm{N}_{2}\)
3 \(\mathrm{N}_{1} < \mathrm{N}_{2}\)
4 cannot be predicted
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CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306653 Which of the following represents Avogadro’s hypothesis?

1 Equal volumes of all gases under same condition of temperature and pressure contain equal number of atoms
2 Equal volumes of all gases under same condition of temperature and pressure contain equal number of molecules
3 Gases react together in volumes which bear a simple ratio to one another
4 The rates of diffusion of gases are inversely proportional to the square root of their densities
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306654 Assertion :
Under similar conditions of temperature and pressure, gases always combine in simple ratio of their volumes.
Reason :
Equal volumes of gases have equal
number of molecules at constant temperature and pressure

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306655 Equal masses of \({{\rm{H}}_{\rm{2}}}{\rm{,}}{{\rm{O}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{H}}_{\rm{4}}}\) have been taken in a container of volume V at temperature \({\rm{2}}{{\rm{7}}^{\rm{^\circ }}}{\rm{C}}\) in identical conditions. The ratio of the volume of gases \({{\rm{H}}_{\rm{2}}}{\rm{:}}{{\rm{O}}_{\rm{2}}}{\rm{:C}}{{\rm{H}}_{\rm{4}}}\) would be

1 \({\rm{8:16:1}}\)
2 \({\rm{16:8:1}}\)
3 \({\rm{16:1:2}}\)
4 \({\rm{8:1:2}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306656 Equal volumes of two different gases 1 and 2 with respective molecular masses \({\text{ }}{{\text{M}}_{\text{1}}}\,{\text{and }}{{\text{M}}_{\text{2}}}\) are at the same temperature \((\mathrm{T})\) and pressure (P). If \({{\text{M}}_{\text{1}}} > {{\text{M}}_{\text{2}}},\) then which of the following is true regarding the number of molecules \((\mathrm{N})\) ?

1 \(\mathrm{N}_{1}>\mathrm{N}_{2}\)
2 \(\mathrm{N}_{1}=\mathrm{N}_{2}\)
3 \(\mathrm{N}_{1} < \mathrm{N}_{2}\)
4 cannot be predicted
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CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306653 Which of the following represents Avogadro’s hypothesis?

1 Equal volumes of all gases under same condition of temperature and pressure contain equal number of atoms
2 Equal volumes of all gases under same condition of temperature and pressure contain equal number of molecules
3 Gases react together in volumes which bear a simple ratio to one another
4 The rates of diffusion of gases are inversely proportional to the square root of their densities
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306654 Assertion :
Under similar conditions of temperature and pressure, gases always combine in simple ratio of their volumes.
Reason :
Equal volumes of gases have equal
number of molecules at constant temperature and pressure

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306655 Equal masses of \({{\rm{H}}_{\rm{2}}}{\rm{,}}{{\rm{O}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{H}}_{\rm{4}}}\) have been taken in a container of volume V at temperature \({\rm{2}}{{\rm{7}}^{\rm{^\circ }}}{\rm{C}}\) in identical conditions. The ratio of the volume of gases \({{\rm{H}}_{\rm{2}}}{\rm{:}}{{\rm{O}}_{\rm{2}}}{\rm{:C}}{{\rm{H}}_{\rm{4}}}\) would be

1 \({\rm{8:16:1}}\)
2 \({\rm{16:8:1}}\)
3 \({\rm{16:1:2}}\)
4 \({\rm{8:1:2}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306656 Equal volumes of two different gases 1 and 2 with respective molecular masses \({\text{ }}{{\text{M}}_{\text{1}}}\,{\text{and }}{{\text{M}}_{\text{2}}}\) are at the same temperature \((\mathrm{T})\) and pressure (P). If \({{\text{M}}_{\text{1}}} > {{\text{M}}_{\text{2}}},\) then which of the following is true regarding the number of molecules \((\mathrm{N})\) ?

1 \(\mathrm{N}_{1}>\mathrm{N}_{2}\)
2 \(\mathrm{N}_{1}=\mathrm{N}_{2}\)
3 \(\mathrm{N}_{1} < \mathrm{N}_{2}\)
4 cannot be predicted
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CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306653 Which of the following represents Avogadro’s hypothesis?

1 Equal volumes of all gases under same condition of temperature and pressure contain equal number of atoms
2 Equal volumes of all gases under same condition of temperature and pressure contain equal number of molecules
3 Gases react together in volumes which bear a simple ratio to one another
4 The rates of diffusion of gases are inversely proportional to the square root of their densities
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306654 Assertion :
Under similar conditions of temperature and pressure, gases always combine in simple ratio of their volumes.
Reason :
Equal volumes of gases have equal
number of molecules at constant temperature and pressure

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306655 Equal masses of \({{\rm{H}}_{\rm{2}}}{\rm{,}}{{\rm{O}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{H}}_{\rm{4}}}\) have been taken in a container of volume V at temperature \({\rm{2}}{{\rm{7}}^{\rm{^\circ }}}{\rm{C}}\) in identical conditions. The ratio of the volume of gases \({{\rm{H}}_{\rm{2}}}{\rm{:}}{{\rm{O}}_{\rm{2}}}{\rm{:C}}{{\rm{H}}_{\rm{4}}}\) would be

1 \({\rm{8:16:1}}\)
2 \({\rm{16:8:1}}\)
3 \({\rm{16:1:2}}\)
4 \({\rm{8:1:2}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306656 Equal volumes of two different gases 1 and 2 with respective molecular masses \({\text{ }}{{\text{M}}_{\text{1}}}\,{\text{and }}{{\text{M}}_{\text{2}}}\) are at the same temperature \((\mathrm{T})\) and pressure (P). If \({{\text{M}}_{\text{1}}} > {{\text{M}}_{\text{2}}},\) then which of the following is true regarding the number of molecules \((\mathrm{N})\) ?

1 \(\mathrm{N}_{1}>\mathrm{N}_{2}\)
2 \(\mathrm{N}_{1}=\mathrm{N}_{2}\)
3 \(\mathrm{N}_{1} < \mathrm{N}_{2}\)
4 cannot be predicted
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