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

306763 Two elements \(\rm{{\text{X}}}\) and \(\rm{{\text{Y}}}\) combine in gaseous state to form \(\rm{{\text{XY}}}\) in the ratio 1:35.5 by mass. The mass of \(\rm{{\text{Y}}}\) that will be required to react with \(\mathrm{2 \mathrm{~g}}\) of \(\mathrm{\mathrm{X}}\) is

1 \(\mathrm{7.1 \mathrm{~g}}\)
2 \(\mathrm{3.55 \mathrm{~g}}\)
3 \(\mathrm{71 \mathrm{~g}}\)
4 \(\mathrm{35.5 \mathrm{~g}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306764 The vapour density of a mixture containing \(\mathrm{NO}_{2}\) and \(\mathrm{N}_{2} \mathrm{O}_{4}\) is 38.3 at \(27^{\circ} \mathrm{C}\). Calculate the moles of \(\mathrm{NO}_{2}\) in \(500 \mathrm{~g}\) of the mixture(approx.)

1 1
2 2
3 3
4 4
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306765 Number of moles of electrons in \(0.5\;\,{\rm{mol}}\,\;{{\rm{N}}^{3 - }}\) ions will be _____.

1 4
2 5
3 7
4 10
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306766 How many molecules are present in \(\mathrm{22400 \mathrm{~cm}^{3}}\) of a gas at STP?

1 \(\mathrm{22.4 \times 10^{20}}\)
2 \(\mathrm{6.022 \times 10^{23}}\)
3 \(\mathrm{6.022 \times 10^{20}}\)
4 \(\mathrm{22.4 \times 10^{23}}\)
MHTCET - 2021
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306767 Arrange the following (I to IV) in the order of increasing masses.
(I) 0.5 mole of \({{\rm{O}}_{\rm{3}}}\)
(II) 0.5 gm molecule of Nitrogen
(III) \({\rm{3}}{\rm{.011 \times 1}}{{\rm{0}}^{{\rm{23}}}}\) molecules of \({{\rm{O}}_{\rm{2}}}\)
(IV) 11.35 L of \({\rm{C}}{{\rm{O}}_{\rm{2}}}\) at STP

1 IV < III < II < I
2 II < III < IV < I
3 III < II < I < IV
4 I < II < III < IV
Join With Us for More Updates
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306763 Two elements \(\rm{{\text{X}}}\) and \(\rm{{\text{Y}}}\) combine in gaseous state to form \(\rm{{\text{XY}}}\) in the ratio 1:35.5 by mass. The mass of \(\rm{{\text{Y}}}\) that will be required to react with \(\mathrm{2 \mathrm{~g}}\) of \(\mathrm{\mathrm{X}}\) is

1 \(\mathrm{7.1 \mathrm{~g}}\)
2 \(\mathrm{3.55 \mathrm{~g}}\)
3 \(\mathrm{71 \mathrm{~g}}\)
4 \(\mathrm{35.5 \mathrm{~g}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306764 The vapour density of a mixture containing \(\mathrm{NO}_{2}\) and \(\mathrm{N}_{2} \mathrm{O}_{4}\) is 38.3 at \(27^{\circ} \mathrm{C}\). Calculate the moles of \(\mathrm{NO}_{2}\) in \(500 \mathrm{~g}\) of the mixture(approx.)

1 1
2 2
3 3
4 4
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306765 Number of moles of electrons in \(0.5\;\,{\rm{mol}}\,\;{{\rm{N}}^{3 - }}\) ions will be _____.

1 4
2 5
3 7
4 10
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306766 How many molecules are present in \(\mathrm{22400 \mathrm{~cm}^{3}}\) of a gas at STP?

1 \(\mathrm{22.4 \times 10^{20}}\)
2 \(\mathrm{6.022 \times 10^{23}}\)
3 \(\mathrm{6.022 \times 10^{20}}\)
4 \(\mathrm{22.4 \times 10^{23}}\)
MHTCET - 2021
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306767 Arrange the following (I to IV) in the order of increasing masses.
(I) 0.5 mole of \({{\rm{O}}_{\rm{3}}}\)
(II) 0.5 gm molecule of Nitrogen
(III) \({\rm{3}}{\rm{.011 \times 1}}{{\rm{0}}^{{\rm{23}}}}\) molecules of \({{\rm{O}}_{\rm{2}}}\)
(IV) 11.35 L of \({\rm{C}}{{\rm{O}}_{\rm{2}}}\) at STP

1 IV < III < II < I
2 II < III < IV < I
3 III < II < I < IV
4 I < II < III < IV
For More Updates join with Us
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CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306763 Two elements \(\rm{{\text{X}}}\) and \(\rm{{\text{Y}}}\) combine in gaseous state to form \(\rm{{\text{XY}}}\) in the ratio 1:35.5 by mass. The mass of \(\rm{{\text{Y}}}\) that will be required to react with \(\mathrm{2 \mathrm{~g}}\) of \(\mathrm{\mathrm{X}}\) is

1 \(\mathrm{7.1 \mathrm{~g}}\)
2 \(\mathrm{3.55 \mathrm{~g}}\)
3 \(\mathrm{71 \mathrm{~g}}\)
4 \(\mathrm{35.5 \mathrm{~g}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306764 The vapour density of a mixture containing \(\mathrm{NO}_{2}\) and \(\mathrm{N}_{2} \mathrm{O}_{4}\) is 38.3 at \(27^{\circ} \mathrm{C}\). Calculate the moles of \(\mathrm{NO}_{2}\) in \(500 \mathrm{~g}\) of the mixture(approx.)

1 1
2 2
3 3
4 4
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306765 Number of moles of electrons in \(0.5\;\,{\rm{mol}}\,\;{{\rm{N}}^{3 - }}\) ions will be _____.

1 4
2 5
3 7
4 10
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306766 How many molecules are present in \(\mathrm{22400 \mathrm{~cm}^{3}}\) of a gas at STP?

1 \(\mathrm{22.4 \times 10^{20}}\)
2 \(\mathrm{6.022 \times 10^{23}}\)
3 \(\mathrm{6.022 \times 10^{20}}\)
4 \(\mathrm{22.4 \times 10^{23}}\)
MHTCET - 2021
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306767 Arrange the following (I to IV) in the order of increasing masses.
(I) 0.5 mole of \({{\rm{O}}_{\rm{3}}}\)
(II) 0.5 gm molecule of Nitrogen
(III) \({\rm{3}}{\rm{.011 \times 1}}{{\rm{0}}^{{\rm{23}}}}\) molecules of \({{\rm{O}}_{\rm{2}}}\)
(IV) 11.35 L of \({\rm{C}}{{\rm{O}}_{\rm{2}}}\) at STP

1 IV < III < II < I
2 II < III < IV < I
3 III < II < I < IV
4 I < II < III < IV
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CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306763 Two elements \(\rm{{\text{X}}}\) and \(\rm{{\text{Y}}}\) combine in gaseous state to form \(\rm{{\text{XY}}}\) in the ratio 1:35.5 by mass. The mass of \(\rm{{\text{Y}}}\) that will be required to react with \(\mathrm{2 \mathrm{~g}}\) of \(\mathrm{\mathrm{X}}\) is

1 \(\mathrm{7.1 \mathrm{~g}}\)
2 \(\mathrm{3.55 \mathrm{~g}}\)
3 \(\mathrm{71 \mathrm{~g}}\)
4 \(\mathrm{35.5 \mathrm{~g}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306764 The vapour density of a mixture containing \(\mathrm{NO}_{2}\) and \(\mathrm{N}_{2} \mathrm{O}_{4}\) is 38.3 at \(27^{\circ} \mathrm{C}\). Calculate the moles of \(\mathrm{NO}_{2}\) in \(500 \mathrm{~g}\) of the mixture(approx.)

1 1
2 2
3 3
4 4
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306765 Number of moles of electrons in \(0.5\;\,{\rm{mol}}\,\;{{\rm{N}}^{3 - }}\) ions will be _____.

1 4
2 5
3 7
4 10
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306766 How many molecules are present in \(\mathrm{22400 \mathrm{~cm}^{3}}\) of a gas at STP?

1 \(\mathrm{22.4 \times 10^{20}}\)
2 \(\mathrm{6.022 \times 10^{23}}\)
3 \(\mathrm{6.022 \times 10^{20}}\)
4 \(\mathrm{22.4 \times 10^{23}}\)
MHTCET - 2021
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306767 Arrange the following (I to IV) in the order of increasing masses.
(I) 0.5 mole of \({{\rm{O}}_{\rm{3}}}\)
(II) 0.5 gm molecule of Nitrogen
(III) \({\rm{3}}{\rm{.011 \times 1}}{{\rm{0}}^{{\rm{23}}}}\) molecules of \({{\rm{O}}_{\rm{2}}}\)
(IV) 11.35 L of \({\rm{C}}{{\rm{O}}_{\rm{2}}}\) at STP

1 IV < III < II < I
2 II < III < IV < I
3 III < II < I < IV
4 I < II < III < IV
Join With Us for More Updates
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306763 Two elements \(\rm{{\text{X}}}\) and \(\rm{{\text{Y}}}\) combine in gaseous state to form \(\rm{{\text{XY}}}\) in the ratio 1:35.5 by mass. The mass of \(\rm{{\text{Y}}}\) that will be required to react with \(\mathrm{2 \mathrm{~g}}\) of \(\mathrm{\mathrm{X}}\) is

1 \(\mathrm{7.1 \mathrm{~g}}\)
2 \(\mathrm{3.55 \mathrm{~g}}\)
3 \(\mathrm{71 \mathrm{~g}}\)
4 \(\mathrm{35.5 \mathrm{~g}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306764 The vapour density of a mixture containing \(\mathrm{NO}_{2}\) and \(\mathrm{N}_{2} \mathrm{O}_{4}\) is 38.3 at \(27^{\circ} \mathrm{C}\). Calculate the moles of \(\mathrm{NO}_{2}\) in \(500 \mathrm{~g}\) of the mixture(approx.)

1 1
2 2
3 3
4 4
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306765 Number of moles of electrons in \(0.5\;\,{\rm{mol}}\,\;{{\rm{N}}^{3 - }}\) ions will be _____.

1 4
2 5
3 7
4 10
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306766 How many molecules are present in \(\mathrm{22400 \mathrm{~cm}^{3}}\) of a gas at STP?

1 \(\mathrm{22.4 \times 10^{20}}\)
2 \(\mathrm{6.022 \times 10^{23}}\)
3 \(\mathrm{6.022 \times 10^{20}}\)
4 \(\mathrm{22.4 \times 10^{23}}\)
MHTCET - 2021
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306767 Arrange the following (I to IV) in the order of increasing masses.
(I) 0.5 mole of \({{\rm{O}}_{\rm{3}}}\)
(II) 0.5 gm molecule of Nitrogen
(III) \({\rm{3}}{\rm{.011 \times 1}}{{\rm{0}}^{{\rm{23}}}}\) molecules of \({{\rm{O}}_{\rm{2}}}\)
(IV) 11.35 L of \({\rm{C}}{{\rm{O}}_{\rm{2}}}\) at STP

1 IV < III < II < I
2 II < III < IV < I
3 III < II < I < IV
4 I < II < III < IV