Stoichiometry and its Calculations
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307062 Match the column I with column II and mark the appropriate choice.

Column IColumn II
A - Mass of \( H_2 \) produced when 0.5 mole of zinc reacts with excess of HClP - \( 3.01 \times 10^{23} \) molecules
B - Mass of all atoms of a compound with formula \( C_{70}H_{22} \)Q - \( 6.023 \times 10^{23} \) molecules
C - Number of molecules in \( 35.5 \) g of \( Cl_2 \)R - \( 1.43 \times 10^{-21} \) g
D - Number of molecules in \( 64 \) g of \( SO_2 \)S - \( 1 \) g

1 A - Q, B - P, C - S, D - R
2 A - P, B - Q, C - R, D - S
3 A - S, B - R, C - P, D - Q
4 A - S, B - R, C - Q, D - P
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307013 The amount of zinc required to produce 224 mL of \({{\rm{H}}_{\rm{2}}}\) at STP on treatment with dil. \({{\rm{H}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\) will be

1 0.65 g
2 6.5 g
3 65 g
4 0.065 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306968 10 g of a mixture of BaO and CaO requires \({\rm{100}}\,\,{\rm{c}}{{\rm{m}}^{\rm{3}}}\) of 2.5 M HCl to react completely. The percentage of calcium oxide in the mixture is approximately
(Given: molar mass of BaO = 153)

1 52.6
2 55.1
3 44.9
4 47.4
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306969 A sample of \({\rm{NaCl}}{{\rm{O}}_{\rm{3}}}\) is converted by heat to NaCl with a loss of 0.16 g of oxygen. The residue is dissolved in water and precipitated as AgCl . The mass of AgCl (in g) obtained will be: (Given: Molar mass of \({\rm{AgCl = 143}}{\rm{.5mo}}{{\rm{l}}^{{\rm{ - 1}}}}\))

1 0.35
2 0.54
3 0.41
4 0.48
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306970 20 mL of methane is completely burnt using 50 mL of oxygen. The volume of gas left after cooling to room temperature is

1 80 mL
2 40 mL
3 60 mL
4 30 mL
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307062 Match the column I with column II and mark the appropriate choice.

Column IColumn II
A - Mass of \( H_2 \) produced when 0.5 mole of zinc reacts with excess of HClP - \( 3.01 \times 10^{23} \) molecules
B - Mass of all atoms of a compound with formula \( C_{70}H_{22} \)Q - \( 6.023 \times 10^{23} \) molecules
C - Number of molecules in \( 35.5 \) g of \( Cl_2 \)R - \( 1.43 \times 10^{-21} \) g
D - Number of molecules in \( 64 \) g of \( SO_2 \)S - \( 1 \) g

1 A - Q, B - P, C - S, D - R
2 A - P, B - Q, C - R, D - S
3 A - S, B - R, C - P, D - Q
4 A - S, B - R, C - Q, D - P
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307013 The amount of zinc required to produce 224 mL of \({{\rm{H}}_{\rm{2}}}\) at STP on treatment with dil. \({{\rm{H}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\) will be

1 0.65 g
2 6.5 g
3 65 g
4 0.065 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306968 10 g of a mixture of BaO and CaO requires \({\rm{100}}\,\,{\rm{c}}{{\rm{m}}^{\rm{3}}}\) of 2.5 M HCl to react completely. The percentage of calcium oxide in the mixture is approximately
(Given: molar mass of BaO = 153)

1 52.6
2 55.1
3 44.9
4 47.4
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306969 A sample of \({\rm{NaCl}}{{\rm{O}}_{\rm{3}}}\) is converted by heat to NaCl with a loss of 0.16 g of oxygen. The residue is dissolved in water and precipitated as AgCl . The mass of AgCl (in g) obtained will be: (Given: Molar mass of \({\rm{AgCl = 143}}{\rm{.5mo}}{{\rm{l}}^{{\rm{ - 1}}}}\))

1 0.35
2 0.54
3 0.41
4 0.48
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306970 20 mL of methane is completely burnt using 50 mL of oxygen. The volume of gas left after cooling to room temperature is

1 80 mL
2 40 mL
3 60 mL
4 30 mL
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307062 Match the column I with column II and mark the appropriate choice.

Column IColumn II
A - Mass of \( H_2 \) produced when 0.5 mole of zinc reacts with excess of HClP - \( 3.01 \times 10^{23} \) molecules
B - Mass of all atoms of a compound with formula \( C_{70}H_{22} \)Q - \( 6.023 \times 10^{23} \) molecules
C - Number of molecules in \( 35.5 \) g of \( Cl_2 \)R - \( 1.43 \times 10^{-21} \) g
D - Number of molecules in \( 64 \) g of \( SO_2 \)S - \( 1 \) g

1 A - Q, B - P, C - S, D - R
2 A - P, B - Q, C - R, D - S
3 A - S, B - R, C - P, D - Q
4 A - S, B - R, C - Q, D - P
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307013 The amount of zinc required to produce 224 mL of \({{\rm{H}}_{\rm{2}}}\) at STP on treatment with dil. \({{\rm{H}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\) will be

1 0.65 g
2 6.5 g
3 65 g
4 0.065 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306968 10 g of a mixture of BaO and CaO requires \({\rm{100}}\,\,{\rm{c}}{{\rm{m}}^{\rm{3}}}\) of 2.5 M HCl to react completely. The percentage of calcium oxide in the mixture is approximately
(Given: molar mass of BaO = 153)

1 52.6
2 55.1
3 44.9
4 47.4
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306969 A sample of \({\rm{NaCl}}{{\rm{O}}_{\rm{3}}}\) is converted by heat to NaCl with a loss of 0.16 g of oxygen. The residue is dissolved in water and precipitated as AgCl . The mass of AgCl (in g) obtained will be: (Given: Molar mass of \({\rm{AgCl = 143}}{\rm{.5mo}}{{\rm{l}}^{{\rm{ - 1}}}}\))

1 0.35
2 0.54
3 0.41
4 0.48
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306970 20 mL of methane is completely burnt using 50 mL of oxygen. The volume of gas left after cooling to room temperature is

1 80 mL
2 40 mL
3 60 mL
4 30 mL
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307062 Match the column I with column II and mark the appropriate choice.

Column IColumn II
A - Mass of \( H_2 \) produced when 0.5 mole of zinc reacts with excess of HClP - \( 3.01 \times 10^{23} \) molecules
B - Mass of all atoms of a compound with formula \( C_{70}H_{22} \)Q - \( 6.023 \times 10^{23} \) molecules
C - Number of molecules in \( 35.5 \) g of \( Cl_2 \)R - \( 1.43 \times 10^{-21} \) g
D - Number of molecules in \( 64 \) g of \( SO_2 \)S - \( 1 \) g

1 A - Q, B - P, C - S, D - R
2 A - P, B - Q, C - R, D - S
3 A - S, B - R, C - P, D - Q
4 A - S, B - R, C - Q, D - P
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307013 The amount of zinc required to produce 224 mL of \({{\rm{H}}_{\rm{2}}}\) at STP on treatment with dil. \({{\rm{H}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\) will be

1 0.65 g
2 6.5 g
3 65 g
4 0.065 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306968 10 g of a mixture of BaO and CaO requires \({\rm{100}}\,\,{\rm{c}}{{\rm{m}}^{\rm{3}}}\) of 2.5 M HCl to react completely. The percentage of calcium oxide in the mixture is approximately
(Given: molar mass of BaO = 153)

1 52.6
2 55.1
3 44.9
4 47.4
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306969 A sample of \({\rm{NaCl}}{{\rm{O}}_{\rm{3}}}\) is converted by heat to NaCl with a loss of 0.16 g of oxygen. The residue is dissolved in water and precipitated as AgCl . The mass of AgCl (in g) obtained will be: (Given: Molar mass of \({\rm{AgCl = 143}}{\rm{.5mo}}{{\rm{l}}^{{\rm{ - 1}}}}\))

1 0.35
2 0.54
3 0.41
4 0.48
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306970 20 mL of methane is completely burnt using 50 mL of oxygen. The volume of gas left after cooling to room temperature is

1 80 mL
2 40 mL
3 60 mL
4 30 mL
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307062 Match the column I with column II and mark the appropriate choice.

Column IColumn II
A - Mass of \( H_2 \) produced when 0.5 mole of zinc reacts with excess of HClP - \( 3.01 \times 10^{23} \) molecules
B - Mass of all atoms of a compound with formula \( C_{70}H_{22} \)Q - \( 6.023 \times 10^{23} \) molecules
C - Number of molecules in \( 35.5 \) g of \( Cl_2 \)R - \( 1.43 \times 10^{-21} \) g
D - Number of molecules in \( 64 \) g of \( SO_2 \)S - \( 1 \) g

1 A - Q, B - P, C - S, D - R
2 A - P, B - Q, C - R, D - S
3 A - S, B - R, C - P, D - Q
4 A - S, B - R, C - Q, D - P
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307013 The amount of zinc required to produce 224 mL of \({{\rm{H}}_{\rm{2}}}\) at STP on treatment with dil. \({{\rm{H}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\) will be

1 0.65 g
2 6.5 g
3 65 g
4 0.065 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306968 10 g of a mixture of BaO and CaO requires \({\rm{100}}\,\,{\rm{c}}{{\rm{m}}^{\rm{3}}}\) of 2.5 M HCl to react completely. The percentage of calcium oxide in the mixture is approximately
(Given: molar mass of BaO = 153)

1 52.6
2 55.1
3 44.9
4 47.4
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306969 A sample of \({\rm{NaCl}}{{\rm{O}}_{\rm{3}}}\) is converted by heat to NaCl with a loss of 0.16 g of oxygen. The residue is dissolved in water and precipitated as AgCl . The mass of AgCl (in g) obtained will be: (Given: Molar mass of \({\rm{AgCl = 143}}{\rm{.5mo}}{{\rm{l}}^{{\rm{ - 1}}}}\))

1 0.35
2 0.54
3 0.41
4 0.48
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306970 20 mL of methane is completely burnt using 50 mL of oxygen. The volume of gas left after cooling to room temperature is

1 80 mL
2 40 mL
3 60 mL
4 30 mL