Mole Concept and Molar Mass
« Previous Topic: Laws of Chemical Combinations Next Topic: Nature of Matter »
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306701 The total number of electrons in 18 mL of water \(\left( {{\rm{density}}{\mkern 1mu} {\mkern 1mu} {\rm{ = }}{\mkern 1mu} {\mkern 1mu} {\rm{1g}}{\mkern 1mu} {\mkern 1mu} {\rm{m}}{{\rm{L}}^{{\rm{ - 1}}}}} \right)\) is

1 \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
2 \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{25}}}}\)
3 \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{24}}}}\)
4 \({\rm{6}}{\rm{.02 \times 18 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
KCET - 2012
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306702 Increasing order of number of moles of the species
(i) 3 grams of \(\mathrm{\mathrm{NO}}\)
(ii) 8.5 grams of \(\mathrm{\mathrm{PH}_{3}}\) and
(iii) 8 grams of methane is

1 (i) \(\mathrm{ < }\) (ii) \(\mathrm{ < }\) (iii)
2 (iii) \(\mathrm{ < }\) (ii) \(\mathrm{ < }\) (i)
3 (i) \(\mathrm{ < }\) (iii) \(\mathrm{ < }\) (ii)
4 (ii) \(\mathrm{ < }\) (iii) \(\mathrm{ < }\) (i)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306756 Common salt obtained from sea - water contains 95% NaCl by mass. The approximate number of molecules present in 10 g of the salt is:

1 \({\rm{1}}{{\rm{0}}^{{\rm{21}}}}\)
2 \({\rm{1}}{{\rm{0}}^{{\rm{22}}}}\)
3 \({\rm{1}}{{\rm{0}}^{{\rm{23}}}}\)
4 \({\rm{1}}{{\rm{0}}^{{\rm{24}}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306703 For \(14 \mathrm{~g}\) of \(\mathrm{CO}\), the wrong statement is

1 it occupies \(2.24 \mathrm{~L}\) at NTP
2 it corresponds to \(1 / 2\) mole of \(\mathrm{CO}\)
3 it corresponds to same mole of \(\mathrm{CO}\) and nitrogen gas
4 it corresponds to \(3.01 \times 10^{23}\) molecules of \(\mathrm{CO}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306704 How many molecules are in 5.23 gm of glucose \(\left( {{{\rm{C}}_{\rm{6}}}{{\rm{H}}_{{\rm{12}}}}{{\rm{O}}_{\rm{6}}}} \right)\) ?

1 \({\rm{1}}{\rm{.65 \times 1}}{{\rm{0}}^{{\rm{22}}}}\)
2 \({\rm{1}}{\rm{.75 \times 1}}{{\rm{0}}^{{\rm{22}}}}\)
3 \({\rm{1}}{\rm{.75 \times 1}}{{\rm{0}}^{{\rm{21}}}}\)
4 None of these
Join With Us for More Updates
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306701 The total number of electrons in 18 mL of water \(\left( {{\rm{density}}{\mkern 1mu} {\mkern 1mu} {\rm{ = }}{\mkern 1mu} {\mkern 1mu} {\rm{1g}}{\mkern 1mu} {\mkern 1mu} {\rm{m}}{{\rm{L}}^{{\rm{ - 1}}}}} \right)\) is

1 \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
2 \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{25}}}}\)
3 \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{24}}}}\)
4 \({\rm{6}}{\rm{.02 \times 18 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
KCET - 2012
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306702 Increasing order of number of moles of the species
(i) 3 grams of \(\mathrm{\mathrm{NO}}\)
(ii) 8.5 grams of \(\mathrm{\mathrm{PH}_{3}}\) and
(iii) 8 grams of methane is

1 (i) \(\mathrm{ < }\) (ii) \(\mathrm{ < }\) (iii)
2 (iii) \(\mathrm{ < }\) (ii) \(\mathrm{ < }\) (i)
3 (i) \(\mathrm{ < }\) (iii) \(\mathrm{ < }\) (ii)
4 (ii) \(\mathrm{ < }\) (iii) \(\mathrm{ < }\) (i)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306756 Common salt obtained from sea - water contains 95% NaCl by mass. The approximate number of molecules present in 10 g of the salt is:

1 \({\rm{1}}{{\rm{0}}^{{\rm{21}}}}\)
2 \({\rm{1}}{{\rm{0}}^{{\rm{22}}}}\)
3 \({\rm{1}}{{\rm{0}}^{{\rm{23}}}}\)
4 \({\rm{1}}{{\rm{0}}^{{\rm{24}}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306703 For \(14 \mathrm{~g}\) of \(\mathrm{CO}\), the wrong statement is

1 it occupies \(2.24 \mathrm{~L}\) at NTP
2 it corresponds to \(1 / 2\) mole of \(\mathrm{CO}\)
3 it corresponds to same mole of \(\mathrm{CO}\) and nitrogen gas
4 it corresponds to \(3.01 \times 10^{23}\) molecules of \(\mathrm{CO}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306704 How many molecules are in 5.23 gm of glucose \(\left( {{{\rm{C}}_{\rm{6}}}{{\rm{H}}_{{\rm{12}}}}{{\rm{O}}_{\rm{6}}}} \right)\) ?

1 \({\rm{1}}{\rm{.65 \times 1}}{{\rm{0}}^{{\rm{22}}}}\)
2 \({\rm{1}}{\rm{.75 \times 1}}{{\rm{0}}^{{\rm{22}}}}\)
3 \({\rm{1}}{\rm{.75 \times 1}}{{\rm{0}}^{{\rm{21}}}}\)
4 None of these
For More Updates join with Us
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306701 The total number of electrons in 18 mL of water \(\left( {{\rm{density}}{\mkern 1mu} {\mkern 1mu} {\rm{ = }}{\mkern 1mu} {\mkern 1mu} {\rm{1g}}{\mkern 1mu} {\mkern 1mu} {\rm{m}}{{\rm{L}}^{{\rm{ - 1}}}}} \right)\) is

1 \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
2 \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{25}}}}\)
3 \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{24}}}}\)
4 \({\rm{6}}{\rm{.02 \times 18 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
KCET - 2012
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306702 Increasing order of number of moles of the species
(i) 3 grams of \(\mathrm{\mathrm{NO}}\)
(ii) 8.5 grams of \(\mathrm{\mathrm{PH}_{3}}\) and
(iii) 8 grams of methane is

1 (i) \(\mathrm{ < }\) (ii) \(\mathrm{ < }\) (iii)
2 (iii) \(\mathrm{ < }\) (ii) \(\mathrm{ < }\) (i)
3 (i) \(\mathrm{ < }\) (iii) \(\mathrm{ < }\) (ii)
4 (ii) \(\mathrm{ < }\) (iii) \(\mathrm{ < }\) (i)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306756 Common salt obtained from sea - water contains 95% NaCl by mass. The approximate number of molecules present in 10 g of the salt is:

1 \({\rm{1}}{{\rm{0}}^{{\rm{21}}}}\)
2 \({\rm{1}}{{\rm{0}}^{{\rm{22}}}}\)
3 \({\rm{1}}{{\rm{0}}^{{\rm{23}}}}\)
4 \({\rm{1}}{{\rm{0}}^{{\rm{24}}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306703 For \(14 \mathrm{~g}\) of \(\mathrm{CO}\), the wrong statement is

1 it occupies \(2.24 \mathrm{~L}\) at NTP
2 it corresponds to \(1 / 2\) mole of \(\mathrm{CO}\)
3 it corresponds to same mole of \(\mathrm{CO}\) and nitrogen gas
4 it corresponds to \(3.01 \times 10^{23}\) molecules of \(\mathrm{CO}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306704 How many molecules are in 5.23 gm of glucose \(\left( {{{\rm{C}}_{\rm{6}}}{{\rm{H}}_{{\rm{12}}}}{{\rm{O}}_{\rm{6}}}} \right)\) ?

1 \({\rm{1}}{\rm{.65 \times 1}}{{\rm{0}}^{{\rm{22}}}}\)
2 \({\rm{1}}{\rm{.75 \times 1}}{{\rm{0}}^{{\rm{22}}}}\)
3 \({\rm{1}}{\rm{.75 \times 1}}{{\rm{0}}^{{\rm{21}}}}\)
4 None of these
NEET DIGITAL LIBRARY
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306701 The total number of electrons in 18 mL of water \(\left( {{\rm{density}}{\mkern 1mu} {\mkern 1mu} {\rm{ = }}{\mkern 1mu} {\mkern 1mu} {\rm{1g}}{\mkern 1mu} {\mkern 1mu} {\rm{m}}{{\rm{L}}^{{\rm{ - 1}}}}} \right)\) is

1 \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
2 \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{25}}}}\)
3 \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{24}}}}\)
4 \({\rm{6}}{\rm{.02 \times 18 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
KCET - 2012
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306702 Increasing order of number of moles of the species
(i) 3 grams of \(\mathrm{\mathrm{NO}}\)
(ii) 8.5 grams of \(\mathrm{\mathrm{PH}_{3}}\) and
(iii) 8 grams of methane is

1 (i) \(\mathrm{ < }\) (ii) \(\mathrm{ < }\) (iii)
2 (iii) \(\mathrm{ < }\) (ii) \(\mathrm{ < }\) (i)
3 (i) \(\mathrm{ < }\) (iii) \(\mathrm{ < }\) (ii)
4 (ii) \(\mathrm{ < }\) (iii) \(\mathrm{ < }\) (i)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306756 Common salt obtained from sea - water contains 95% NaCl by mass. The approximate number of molecules present in 10 g of the salt is:

1 \({\rm{1}}{{\rm{0}}^{{\rm{21}}}}\)
2 \({\rm{1}}{{\rm{0}}^{{\rm{22}}}}\)
3 \({\rm{1}}{{\rm{0}}^{{\rm{23}}}}\)
4 \({\rm{1}}{{\rm{0}}^{{\rm{24}}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306703 For \(14 \mathrm{~g}\) of \(\mathrm{CO}\), the wrong statement is

1 it occupies \(2.24 \mathrm{~L}\) at NTP
2 it corresponds to \(1 / 2\) mole of \(\mathrm{CO}\)
3 it corresponds to same mole of \(\mathrm{CO}\) and nitrogen gas
4 it corresponds to \(3.01 \times 10^{23}\) molecules of \(\mathrm{CO}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306704 How many molecules are in 5.23 gm of glucose \(\left( {{{\rm{C}}_{\rm{6}}}{{\rm{H}}_{{\rm{12}}}}{{\rm{O}}_{\rm{6}}}} \right)\) ?

1 \({\rm{1}}{\rm{.65 \times 1}}{{\rm{0}}^{{\rm{22}}}}\)
2 \({\rm{1}}{\rm{.75 \times 1}}{{\rm{0}}^{{\rm{22}}}}\)
3 \({\rm{1}}{\rm{.75 \times 1}}{{\rm{0}}^{{\rm{21}}}}\)
4 None of these
Join With Us for More Updates
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306701 The total number of electrons in 18 mL of water \(\left( {{\rm{density}}{\mkern 1mu} {\mkern 1mu} {\rm{ = }}{\mkern 1mu} {\mkern 1mu} {\rm{1g}}{\mkern 1mu} {\mkern 1mu} {\rm{m}}{{\rm{L}}^{{\rm{ - 1}}}}} \right)\) is

1 \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
2 \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{25}}}}\)
3 \({\rm{6}}{\rm{.02 \times 1}}{{\rm{0}}^{{\rm{24}}}}\)
4 \({\rm{6}}{\rm{.02 \times 18 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
KCET - 2012
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306702 Increasing order of number of moles of the species
(i) 3 grams of \(\mathrm{\mathrm{NO}}\)
(ii) 8.5 grams of \(\mathrm{\mathrm{PH}_{3}}\) and
(iii) 8 grams of methane is

1 (i) \(\mathrm{ < }\) (ii) \(\mathrm{ < }\) (iii)
2 (iii) \(\mathrm{ < }\) (ii) \(\mathrm{ < }\) (i)
3 (i) \(\mathrm{ < }\) (iii) \(\mathrm{ < }\) (ii)
4 (ii) \(\mathrm{ < }\) (iii) \(\mathrm{ < }\) (i)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306756 Common salt obtained from sea - water contains 95% NaCl by mass. The approximate number of molecules present in 10 g of the salt is:

1 \({\rm{1}}{{\rm{0}}^{{\rm{21}}}}\)
2 \({\rm{1}}{{\rm{0}}^{{\rm{22}}}}\)
3 \({\rm{1}}{{\rm{0}}^{{\rm{23}}}}\)
4 \({\rm{1}}{{\rm{0}}^{{\rm{24}}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306703 For \(14 \mathrm{~g}\) of \(\mathrm{CO}\), the wrong statement is

1 it occupies \(2.24 \mathrm{~L}\) at NTP
2 it corresponds to \(1 / 2\) mole of \(\mathrm{CO}\)
3 it corresponds to same mole of \(\mathrm{CO}\) and nitrogen gas
4 it corresponds to \(3.01 \times 10^{23}\) molecules of \(\mathrm{CO}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306704 How many molecules are in 5.23 gm of glucose \(\left( {{{\rm{C}}_{\rm{6}}}{{\rm{H}}_{{\rm{12}}}}{{\rm{O}}_{\rm{6}}}} \right)\) ?

1 \({\rm{1}}{\rm{.65 \times 1}}{{\rm{0}}^{{\rm{22}}}}\)
2 \({\rm{1}}{\rm{.75 \times 1}}{{\rm{0}}^{{\rm{22}}}}\)
3 \({\rm{1}}{\rm{.75 \times 1}}{{\rm{0}}^{{\rm{21}}}}\)
4 None of these