Mole Concept and Molar Mass
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306755 The volume of 1 mole of any pure gas at standard temperature and pressure is always equal to

1 \({\rm{0}}{\rm{.022414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
2 \({\rm{22}}{\rm{.414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
3 \({\rm{2}}{\rm{.2414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
4 \({\rm{0}}{\rm{.22414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306689 The number of gram molecules of chlorine in \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{25}}}}\) hydrogen chloride molecules is

1 10
2 100
3 50
4 5
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306690 Two containers P and Q of equal volume (1litre each) contain 6g of \({{\rm{O}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{S}}{{\rm{O}}_{\rm{2}}}\) respectively at 300 K. Then

1 Number of molecules in P is less than that in Q
2 Number of molecules in Q is less than that in P
3 Number of molecules in P and Q are same
4 Either (1) or (2)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306691 The highest number of helium atoms is in

1 4 mol of helium
2 4 u of helium
3 4 g of helium
4 2.271098 L of helium at STP
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306692 \(\mathrm{4.0 \mathrm{~g}}\) of caustic soda \(\mathrm{(\mathrm{NaOH})(\operatorname{mol}}\) mass 40\(\mathrm{)}\) contains same number of sodium ions as are present in

1 \(\mathrm{10.6 \mathrm{~g}}\) of \(\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}}\) (mol. mass 106)
2 \(\mathrm{58.5 \mathrm{~g}}\) of \(\mathrm{\mathrm{NaCl}}\) (Formula mass 58.5 )
3 \(\mathrm{100 \mathrm{ml}}\) of \({\text{0}}{\text{.5 M N}}{{\text{a}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}\) (Formula mass 142)
4 1 mol of \(\mathrm{\mathrm{NaNO}_{3}}\) (mol. mass 85)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306755 The volume of 1 mole of any pure gas at standard temperature and pressure is always equal to

1 \({\rm{0}}{\rm{.022414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
2 \({\rm{22}}{\rm{.414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
3 \({\rm{2}}{\rm{.2414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
4 \({\rm{0}}{\rm{.22414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306689 The number of gram molecules of chlorine in \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{25}}}}\) hydrogen chloride molecules is

1 10
2 100
3 50
4 5
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306690 Two containers P and Q of equal volume (1litre each) contain 6g of \({{\rm{O}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{S}}{{\rm{O}}_{\rm{2}}}\) respectively at 300 K. Then

1 Number of molecules in P is less than that in Q
2 Number of molecules in Q is less than that in P
3 Number of molecules in P and Q are same
4 Either (1) or (2)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306691 The highest number of helium atoms is in

1 4 mol of helium
2 4 u of helium
3 4 g of helium
4 2.271098 L of helium at STP
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306692 \(\mathrm{4.0 \mathrm{~g}}\) of caustic soda \(\mathrm{(\mathrm{NaOH})(\operatorname{mol}}\) mass 40\(\mathrm{)}\) contains same number of sodium ions as are present in

1 \(\mathrm{10.6 \mathrm{~g}}\) of \(\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}}\) (mol. mass 106)
2 \(\mathrm{58.5 \mathrm{~g}}\) of \(\mathrm{\mathrm{NaCl}}\) (Formula mass 58.5 )
3 \(\mathrm{100 \mathrm{ml}}\) of \({\text{0}}{\text{.5 M N}}{{\text{a}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}\) (Formula mass 142)
4 1 mol of \(\mathrm{\mathrm{NaNO}_{3}}\) (mol. mass 85)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306755 The volume of 1 mole of any pure gas at standard temperature and pressure is always equal to

1 \({\rm{0}}{\rm{.022414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
2 \({\rm{22}}{\rm{.414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
3 \({\rm{2}}{\rm{.2414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
4 \({\rm{0}}{\rm{.22414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306689 The number of gram molecules of chlorine in \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{25}}}}\) hydrogen chloride molecules is

1 10
2 100
3 50
4 5
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306690 Two containers P and Q of equal volume (1litre each) contain 6g of \({{\rm{O}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{S}}{{\rm{O}}_{\rm{2}}}\) respectively at 300 K. Then

1 Number of molecules in P is less than that in Q
2 Number of molecules in Q is less than that in P
3 Number of molecules in P and Q are same
4 Either (1) or (2)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306691 The highest number of helium atoms is in

1 4 mol of helium
2 4 u of helium
3 4 g of helium
4 2.271098 L of helium at STP
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306692 \(\mathrm{4.0 \mathrm{~g}}\) of caustic soda \(\mathrm{(\mathrm{NaOH})(\operatorname{mol}}\) mass 40\(\mathrm{)}\) contains same number of sodium ions as are present in

1 \(\mathrm{10.6 \mathrm{~g}}\) of \(\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}}\) (mol. mass 106)
2 \(\mathrm{58.5 \mathrm{~g}}\) of \(\mathrm{\mathrm{NaCl}}\) (Formula mass 58.5 )
3 \(\mathrm{100 \mathrm{ml}}\) of \({\text{0}}{\text{.5 M N}}{{\text{a}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}\) (Formula mass 142)
4 1 mol of \(\mathrm{\mathrm{NaNO}_{3}}\) (mol. mass 85)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306755 The volume of 1 mole of any pure gas at standard temperature and pressure is always equal to

1 \({\rm{0}}{\rm{.022414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
2 \({\rm{22}}{\rm{.414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
3 \({\rm{2}}{\rm{.2414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
4 \({\rm{0}}{\rm{.22414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306689 The number of gram molecules of chlorine in \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{25}}}}\) hydrogen chloride molecules is

1 10
2 100
3 50
4 5
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306690 Two containers P and Q of equal volume (1litre each) contain 6g of \({{\rm{O}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{S}}{{\rm{O}}_{\rm{2}}}\) respectively at 300 K. Then

1 Number of molecules in P is less than that in Q
2 Number of molecules in Q is less than that in P
3 Number of molecules in P and Q are same
4 Either (1) or (2)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306691 The highest number of helium atoms is in

1 4 mol of helium
2 4 u of helium
3 4 g of helium
4 2.271098 L of helium at STP
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306692 \(\mathrm{4.0 \mathrm{~g}}\) of caustic soda \(\mathrm{(\mathrm{NaOH})(\operatorname{mol}}\) mass 40\(\mathrm{)}\) contains same number of sodium ions as are present in

1 \(\mathrm{10.6 \mathrm{~g}}\) of \(\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}}\) (mol. mass 106)
2 \(\mathrm{58.5 \mathrm{~g}}\) of \(\mathrm{\mathrm{NaCl}}\) (Formula mass 58.5 )
3 \(\mathrm{100 \mathrm{ml}}\) of \({\text{0}}{\text{.5 M N}}{{\text{a}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}\) (Formula mass 142)
4 1 mol of \(\mathrm{\mathrm{NaNO}_{3}}\) (mol. mass 85)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306755 The volume of 1 mole of any pure gas at standard temperature and pressure is always equal to

1 \({\rm{0}}{\rm{.022414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
2 \({\rm{22}}{\rm{.414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
3 \({\rm{2}}{\rm{.2414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
4 \({\rm{0}}{\rm{.22414}}{\mkern 1mu} {\mkern 1mu} {{\rm{m}}^{\rm{3}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306689 The number of gram molecules of chlorine in \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{25}}}}\) hydrogen chloride molecules is

1 10
2 100
3 50
4 5
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306690 Two containers P and Q of equal volume (1litre each) contain 6g of \({{\rm{O}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{S}}{{\rm{O}}_{\rm{2}}}\) respectively at 300 K. Then

1 Number of molecules in P is less than that in Q
2 Number of molecules in Q is less than that in P
3 Number of molecules in P and Q are same
4 Either (1) or (2)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306691 The highest number of helium atoms is in

1 4 mol of helium
2 4 u of helium
3 4 g of helium
4 2.271098 L of helium at STP
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306692 \(\mathrm{4.0 \mathrm{~g}}\) of caustic soda \(\mathrm{(\mathrm{NaOH})(\operatorname{mol}}\) mass 40\(\mathrm{)}\) contains same number of sodium ions as are present in

1 \(\mathrm{10.6 \mathrm{~g}}\) of \(\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}}\) (mol. mass 106)
2 \(\mathrm{58.5 \mathrm{~g}}\) of \(\mathrm{\mathrm{NaCl}}\) (Formula mass 58.5 )
3 \(\mathrm{100 \mathrm{ml}}\) of \({\text{0}}{\text{.5 M N}}{{\text{a}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}\) (Formula mass 142)
4 1 mol of \(\mathrm{\mathrm{NaNO}_{3}}\) (mol. mass 85)