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

306785 The ratio of masses of oxygen and nitrogen in a particular gaseous mixture is 1:4. The ratio of number of their molecules is

1 \({\rm{3:16}}\)
2 \({\rm{1:4}}\)
3 \({\rm{7:32}}\)
4 \({\rm{1:8}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306786 Mass of 0.1 mole of methane is

1 1.6 g
2 0.1 g
3 1 g
4 16 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306787 If \({\mathrm{10^{21}}}\) molecules are removed from 140 mg of \({\mathrm{\mathrm{N}_{2}}}\), then the number of moles of \({\mathrm{\mathrm{N}_{2}}}\) left is \({\mathrm{3.34 \times 10^{\mathrm{X}}}}\) moles. The value of ' X ' is ____.

1 \(-\)1
2 \(-\)2
3 \(-\)3
4 \(-\)4
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306797 Number of atoms in the following samples of substances is the largest in:

1 4.0 g of hydrogen
2 7.10 g of chlorine
3 127.0 g of iodine
4 48.0 g of magnesium
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306785 The ratio of masses of oxygen and nitrogen in a particular gaseous mixture is 1:4. The ratio of number of their molecules is

1 \({\rm{3:16}}\)
2 \({\rm{1:4}}\)
3 \({\rm{7:32}}\)
4 \({\rm{1:8}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306786 Mass of 0.1 mole of methane is

1 1.6 g
2 0.1 g
3 1 g
4 16 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306787 If \({\mathrm{10^{21}}}\) molecules are removed from 140 mg of \({\mathrm{\mathrm{N}_{2}}}\), then the number of moles of \({\mathrm{\mathrm{N}_{2}}}\) left is \({\mathrm{3.34 \times 10^{\mathrm{X}}}}\) moles. The value of ' X ' is ____.

1 \(-\)1
2 \(-\)2
3 \(-\)3
4 \(-\)4
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306797 Number of atoms in the following samples of substances is the largest in:

1 4.0 g of hydrogen
2 7.10 g of chlorine
3 127.0 g of iodine
4 48.0 g of magnesium
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306785 The ratio of masses of oxygen and nitrogen in a particular gaseous mixture is 1:4. The ratio of number of their molecules is

1 \({\rm{3:16}}\)
2 \({\rm{1:4}}\)
3 \({\rm{7:32}}\)
4 \({\rm{1:8}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306786 Mass of 0.1 mole of methane is

1 1.6 g
2 0.1 g
3 1 g
4 16 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306787 If \({\mathrm{10^{21}}}\) molecules are removed from 140 mg of \({\mathrm{\mathrm{N}_{2}}}\), then the number of moles of \({\mathrm{\mathrm{N}_{2}}}\) left is \({\mathrm{3.34 \times 10^{\mathrm{X}}}}\) moles. The value of ' X ' is ____.

1 \(-\)1
2 \(-\)2
3 \(-\)3
4 \(-\)4
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306797 Number of atoms in the following samples of substances is the largest in:

1 4.0 g of hydrogen
2 7.10 g of chlorine
3 127.0 g of iodine
4 48.0 g of magnesium
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306785 The ratio of masses of oxygen and nitrogen in a particular gaseous mixture is 1:4. The ratio of number of their molecules is

1 \({\rm{3:16}}\)
2 \({\rm{1:4}}\)
3 \({\rm{7:32}}\)
4 \({\rm{1:8}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306786 Mass of 0.1 mole of methane is

1 1.6 g
2 0.1 g
3 1 g
4 16 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306787 If \({\mathrm{10^{21}}}\) molecules are removed from 140 mg of \({\mathrm{\mathrm{N}_{2}}}\), then the number of moles of \({\mathrm{\mathrm{N}_{2}}}\) left is \({\mathrm{3.34 \times 10^{\mathrm{X}}}}\) moles. The value of ' X ' is ____.

1 \(-\)1
2 \(-\)2
3 \(-\)3
4 \(-\)4
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306797 Number of atoms in the following samples of substances is the largest in:

1 4.0 g of hydrogen
2 7.10 g of chlorine
3 127.0 g of iodine
4 48.0 g of magnesium