Stoichiometry and its Calculations
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306978 Assertion :
Combustion of 16 g of methane gives 18 g of water.
Reason :
In the combustion of methane, water is one of the products.

1 If both Assertion & Reason are true and reason is the correct explanation of the assertion.
2 If both Assertion & Reason are true but reason is not the correct explanation of the assertion.
3 If Assertion is true but Reason is false.
4 If Assertion is false but Reason is true.
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306979 1 g alloy Cu and Zn reacted with excess of dil. \({{\rm{H}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\) to give \({{\rm{H}}_{\rm{2}}}\) gas which occupies 60 Ml at STP. The percentage of Zn in the alloy is

1 \(17\% \)
2 \(34\% \)
3 \(83\% \)
4 \(40\% \)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306980 \({\rm{A + 2B + 3C}} \to {\rm{A}}{{\rm{B}}_{\rm{2}}}{{\rm{C}}_{\rm{3}}}\)
Reaction of 6.0 g of A, \({\rm{6}}{\rm{.0 \times 1}}{{\rm{0}}^{{\rm{23}}}}\) atoms of B, and 0.036 mol of C yields 4.8 g of compound \({\rm{A}}{{\rm{B}}_{\rm{2}}}{{\rm{C}}_{\rm{3}}}\). If the atomic mass of A and C are 60 and 80 amu, respectively, the atomic mass of B is \(\left( {{\rm{Avogadro}}{\mkern 1mu} {\mkern 1mu} {\rm{no}}{\rm{. = 6 \times 1}}{{\rm{0}}^{{\rm{23}}}}} \right)\):

1 50 amu
2 60 amu
3 70 amu
4 40 amu
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306981 In the formation reaction of \(\mathrm{NH}_{3}\) from \(\mathrm{N}_{2}\) and \(\mathrm{H}_{2}, 140 \mathrm{~g}\) of \(\mathrm{N}_{2}\) and \(40\,{\rm{g}}\,{{\rm{H}}_2}\) were mixed.Select the option which is correct.

1 Maximum mass of \(\mathrm{NH}_{3}\) which can be formed is 180 g .
2 If \(\% \) yield of reaction is 80 , then \(\mathrm{H}_{2}\) consumed will be 32 g .
3 Some \(\mathrm{N}_{2}(\mathrm{~g})\) will be left after the reaction.
4 If \(\mathrm{NH}_{3}\) formed is 85 g then \(\% \) yield will be \(50 \%\).
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306982 According to following reaction,\(\mathrm{A}+\mathrm{BO}_{3} \rightarrow \mathrm{A}_{3} \mathrm{O}_{4}+\mathrm{B}_{2} \mathrm{O}_{3}\) the number of moles of \(\mathrm{A}_{3} \mathrm{O}_{4}\) produced if 1 mole of A is mixed with 1 mole of \(\mathrm{BO}_{3}\) is

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

306978 Assertion :
Combustion of 16 g of methane gives 18 g of water.
Reason :
In the combustion of methane, water is one of the products.

1 If both Assertion & Reason are true and reason is the correct explanation of the assertion.
2 If both Assertion & Reason are true but reason is not the correct explanation of the assertion.
3 If Assertion is true but Reason is false.
4 If Assertion is false but Reason is true.
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306979 1 g alloy Cu and Zn reacted with excess of dil. \({{\rm{H}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\) to give \({{\rm{H}}_{\rm{2}}}\) gas which occupies 60 Ml at STP. The percentage of Zn in the alloy is

1 \(17\% \)
2 \(34\% \)
3 \(83\% \)
4 \(40\% \)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306980 \({\rm{A + 2B + 3C}} \to {\rm{A}}{{\rm{B}}_{\rm{2}}}{{\rm{C}}_{\rm{3}}}\)
Reaction of 6.0 g of A, \({\rm{6}}{\rm{.0 \times 1}}{{\rm{0}}^{{\rm{23}}}}\) atoms of B, and 0.036 mol of C yields 4.8 g of compound \({\rm{A}}{{\rm{B}}_{\rm{2}}}{{\rm{C}}_{\rm{3}}}\). If the atomic mass of A and C are 60 and 80 amu, respectively, the atomic mass of B is \(\left( {{\rm{Avogadro}}{\mkern 1mu} {\mkern 1mu} {\rm{no}}{\rm{. = 6 \times 1}}{{\rm{0}}^{{\rm{23}}}}} \right)\):

1 50 amu
2 60 amu
3 70 amu
4 40 amu
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306981 In the formation reaction of \(\mathrm{NH}_{3}\) from \(\mathrm{N}_{2}\) and \(\mathrm{H}_{2}, 140 \mathrm{~g}\) of \(\mathrm{N}_{2}\) and \(40\,{\rm{g}}\,{{\rm{H}}_2}\) were mixed.Select the option which is correct.

1 Maximum mass of \(\mathrm{NH}_{3}\) which can be formed is 180 g .
2 If \(\% \) yield of reaction is 80 , then \(\mathrm{H}_{2}\) consumed will be 32 g .
3 Some \(\mathrm{N}_{2}(\mathrm{~g})\) will be left after the reaction.
4 If \(\mathrm{NH}_{3}\) formed is 85 g then \(\% \) yield will be \(50 \%\).
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306982 According to following reaction,\(\mathrm{A}+\mathrm{BO}_{3} \rightarrow \mathrm{A}_{3} \mathrm{O}_{4}+\mathrm{B}_{2} \mathrm{O}_{3}\) the number of moles of \(\mathrm{A}_{3} \mathrm{O}_{4}\) produced if 1 mole of A is mixed with 1 mole of \(\mathrm{BO}_{3}\) is

1 3
2 1
3 \(\dfrac{1}{3}\)
4 \(\dfrac{2}{3}\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306978 Assertion :
Combustion of 16 g of methane gives 18 g of water.
Reason :
In the combustion of methane, water is one of the products.

1 If both Assertion & Reason are true and reason is the correct explanation of the assertion.
2 If both Assertion & Reason are true but reason is not the correct explanation of the assertion.
3 If Assertion is true but Reason is false.
4 If Assertion is false but Reason is true.
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306979 1 g alloy Cu and Zn reacted with excess of dil. \({{\rm{H}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\) to give \({{\rm{H}}_{\rm{2}}}\) gas which occupies 60 Ml at STP. The percentage of Zn in the alloy is

1 \(17\% \)
2 \(34\% \)
3 \(83\% \)
4 \(40\% \)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306980 \({\rm{A + 2B + 3C}} \to {\rm{A}}{{\rm{B}}_{\rm{2}}}{{\rm{C}}_{\rm{3}}}\)
Reaction of 6.0 g of A, \({\rm{6}}{\rm{.0 \times 1}}{{\rm{0}}^{{\rm{23}}}}\) atoms of B, and 0.036 mol of C yields 4.8 g of compound \({\rm{A}}{{\rm{B}}_{\rm{2}}}{{\rm{C}}_{\rm{3}}}\). If the atomic mass of A and C are 60 and 80 amu, respectively, the atomic mass of B is \(\left( {{\rm{Avogadro}}{\mkern 1mu} {\mkern 1mu} {\rm{no}}{\rm{. = 6 \times 1}}{{\rm{0}}^{{\rm{23}}}}} \right)\):

1 50 amu
2 60 amu
3 70 amu
4 40 amu
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306981 In the formation reaction of \(\mathrm{NH}_{3}\) from \(\mathrm{N}_{2}\) and \(\mathrm{H}_{2}, 140 \mathrm{~g}\) of \(\mathrm{N}_{2}\) and \(40\,{\rm{g}}\,{{\rm{H}}_2}\) were mixed.Select the option which is correct.

1 Maximum mass of \(\mathrm{NH}_{3}\) which can be formed is 180 g .
2 If \(\% \) yield of reaction is 80 , then \(\mathrm{H}_{2}\) consumed will be 32 g .
3 Some \(\mathrm{N}_{2}(\mathrm{~g})\) will be left after the reaction.
4 If \(\mathrm{NH}_{3}\) formed is 85 g then \(\% \) yield will be \(50 \%\).
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306982 According to following reaction,\(\mathrm{A}+\mathrm{BO}_{3} \rightarrow \mathrm{A}_{3} \mathrm{O}_{4}+\mathrm{B}_{2} \mathrm{O}_{3}\) the number of moles of \(\mathrm{A}_{3} \mathrm{O}_{4}\) produced if 1 mole of A is mixed with 1 mole of \(\mathrm{BO}_{3}\) is

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

306978 Assertion :
Combustion of 16 g of methane gives 18 g of water.
Reason :
In the combustion of methane, water is one of the products.

1 If both Assertion & Reason are true and reason is the correct explanation of the assertion.
2 If both Assertion & Reason are true but reason is not the correct explanation of the assertion.
3 If Assertion is true but Reason is false.
4 If Assertion is false but Reason is true.
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306979 1 g alloy Cu and Zn reacted with excess of dil. \({{\rm{H}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\) to give \({{\rm{H}}_{\rm{2}}}\) gas which occupies 60 Ml at STP. The percentage of Zn in the alloy is

1 \(17\% \)
2 \(34\% \)
3 \(83\% \)
4 \(40\% \)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306980 \({\rm{A + 2B + 3C}} \to {\rm{A}}{{\rm{B}}_{\rm{2}}}{{\rm{C}}_{\rm{3}}}\)
Reaction of 6.0 g of A, \({\rm{6}}{\rm{.0 \times 1}}{{\rm{0}}^{{\rm{23}}}}\) atoms of B, and 0.036 mol of C yields 4.8 g of compound \({\rm{A}}{{\rm{B}}_{\rm{2}}}{{\rm{C}}_{\rm{3}}}\). If the atomic mass of A and C are 60 and 80 amu, respectively, the atomic mass of B is \(\left( {{\rm{Avogadro}}{\mkern 1mu} {\mkern 1mu} {\rm{no}}{\rm{. = 6 \times 1}}{{\rm{0}}^{{\rm{23}}}}} \right)\):

1 50 amu
2 60 amu
3 70 amu
4 40 amu
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306981 In the formation reaction of \(\mathrm{NH}_{3}\) from \(\mathrm{N}_{2}\) and \(\mathrm{H}_{2}, 140 \mathrm{~g}\) of \(\mathrm{N}_{2}\) and \(40\,{\rm{g}}\,{{\rm{H}}_2}\) were mixed.Select the option which is correct.

1 Maximum mass of \(\mathrm{NH}_{3}\) which can be formed is 180 g .
2 If \(\% \) yield of reaction is 80 , then \(\mathrm{H}_{2}\) consumed will be 32 g .
3 Some \(\mathrm{N}_{2}(\mathrm{~g})\) will be left after the reaction.
4 If \(\mathrm{NH}_{3}\) formed is 85 g then \(\% \) yield will be \(50 \%\).
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306982 According to following reaction,\(\mathrm{A}+\mathrm{BO}_{3} \rightarrow \mathrm{A}_{3} \mathrm{O}_{4}+\mathrm{B}_{2} \mathrm{O}_{3}\) the number of moles of \(\mathrm{A}_{3} \mathrm{O}_{4}\) produced if 1 mole of A is mixed with 1 mole of \(\mathrm{BO}_{3}\) is

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

306978 Assertion :
Combustion of 16 g of methane gives 18 g of water.
Reason :
In the combustion of methane, water is one of the products.

1 If both Assertion & Reason are true and reason is the correct explanation of the assertion.
2 If both Assertion & Reason are true but reason is not the correct explanation of the assertion.
3 If Assertion is true but Reason is false.
4 If Assertion is false but Reason is true.
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306979 1 g alloy Cu and Zn reacted with excess of dil. \({{\rm{H}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\) to give \({{\rm{H}}_{\rm{2}}}\) gas which occupies 60 Ml at STP. The percentage of Zn in the alloy is

1 \(17\% \)
2 \(34\% \)
3 \(83\% \)
4 \(40\% \)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306980 \({\rm{A + 2B + 3C}} \to {\rm{A}}{{\rm{B}}_{\rm{2}}}{{\rm{C}}_{\rm{3}}}\)
Reaction of 6.0 g of A, \({\rm{6}}{\rm{.0 \times 1}}{{\rm{0}}^{{\rm{23}}}}\) atoms of B, and 0.036 mol of C yields 4.8 g of compound \({\rm{A}}{{\rm{B}}_{\rm{2}}}{{\rm{C}}_{\rm{3}}}\). If the atomic mass of A and C are 60 and 80 amu, respectively, the atomic mass of B is \(\left( {{\rm{Avogadro}}{\mkern 1mu} {\mkern 1mu} {\rm{no}}{\rm{. = 6 \times 1}}{{\rm{0}}^{{\rm{23}}}}} \right)\):

1 50 amu
2 60 amu
3 70 amu
4 40 amu
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306981 In the formation reaction of \(\mathrm{NH}_{3}\) from \(\mathrm{N}_{2}\) and \(\mathrm{H}_{2}, 140 \mathrm{~g}\) of \(\mathrm{N}_{2}\) and \(40\,{\rm{g}}\,{{\rm{H}}_2}\) were mixed.Select the option which is correct.

1 Maximum mass of \(\mathrm{NH}_{3}\) which can be formed is 180 g .
2 If \(\% \) yield of reaction is 80 , then \(\mathrm{H}_{2}\) consumed will be 32 g .
3 Some \(\mathrm{N}_{2}(\mathrm{~g})\) will be left after the reaction.
4 If \(\mathrm{NH}_{3}\) formed is 85 g then \(\% \) yield will be \(50 \%\).
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306982 According to following reaction,\(\mathrm{A}+\mathrm{BO}_{3} \rightarrow \mathrm{A}_{3} \mathrm{O}_{4}+\mathrm{B}_{2} \mathrm{O}_{3}\) the number of moles of \(\mathrm{A}_{3} \mathrm{O}_{4}\) produced if 1 mole of A is mixed with 1 mole of \(\mathrm{BO}_{3}\) is

1 3
2 1
3 \(\dfrac{1}{3}\)
4 \(\dfrac{2}{3}\)