09. HYDROGEN
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Hydrogen

27680 When temporary hard water containing \(Mg{(HC{O_3})_2}\) is boiled the ppt. formed is of

1 \(MgC{O_3}\)
2 \(MgO\)
3 \(Mg{(OH)_2}\)
4 None of these
Hydrogen

27620 There is a sample of \(10\) volume of hydrogen peroxide solution. Calculate its strength.........%

1 \(3.00\)
2 \(4.045\)
3 \(2.509\)
4 \(3.035\)
Hydrogen

27621 In lab \({H_2}{O_2}\) is prepared by

1 Cold \({H_2}S{O_4} + Ba{O_2}\)
2 \(HCl + Ba{O_2}\)
3 Conc.\({H_2}S{O_4} + N{a_2}{O_2}\)
4 \({H_2} + {O_2}\)
Hydrogen

27622 The structure of \({H_2}{O_2}\) is

1 259-a4
2 259-b4
3 \(H - O - O - H\)
4 259-d4
Hydrogen

27623 \(HCl\) is added to the following oxides which one would give \({H_2}{O_2}\)

1 \(Mn{O_2}\)
2 \(Pb{O_2}\)
3 \(Ba{O_2}\)
4 None of these
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Hydrogen

27680 When temporary hard water containing \(Mg{(HC{O_3})_2}\) is boiled the ppt. formed is of

1 \(MgC{O_3}\)
2 \(MgO\)
3 \(Mg{(OH)_2}\)
4 None of these
Hydrogen

27620 There is a sample of \(10\) volume of hydrogen peroxide solution. Calculate its strength.........%

1 \(3.00\)
2 \(4.045\)
3 \(2.509\)
4 \(3.035\)
Hydrogen

27621 In lab \({H_2}{O_2}\) is prepared by

1 Cold \({H_2}S{O_4} + Ba{O_2}\)
2 \(HCl + Ba{O_2}\)
3 Conc.\({H_2}S{O_4} + N{a_2}{O_2}\)
4 \({H_2} + {O_2}\)
Hydrogen

27622 The structure of \({H_2}{O_2}\) is

1 259-a4
2 259-b4
3 \(H - O - O - H\)
4 259-d4
Hydrogen

27623 \(HCl\) is added to the following oxides which one would give \({H_2}{O_2}\)

1 \(Mn{O_2}\)
2 \(Pb{O_2}\)
3 \(Ba{O_2}\)
4 None of these
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Hydrogen

27680 When temporary hard water containing \(Mg{(HC{O_3})_2}\) is boiled the ppt. formed is of

1 \(MgC{O_3}\)
2 \(MgO\)
3 \(Mg{(OH)_2}\)
4 None of these
Hydrogen

27620 There is a sample of \(10\) volume of hydrogen peroxide solution. Calculate its strength.........%

1 \(3.00\)
2 \(4.045\)
3 \(2.509\)
4 \(3.035\)
Hydrogen

27621 In lab \({H_2}{O_2}\) is prepared by

1 Cold \({H_2}S{O_4} + Ba{O_2}\)
2 \(HCl + Ba{O_2}\)
3 Conc.\({H_2}S{O_4} + N{a_2}{O_2}\)
4 \({H_2} + {O_2}\)
Hydrogen

27622 The structure of \({H_2}{O_2}\) is

1 259-a4
2 259-b4
3 \(H - O - O - H\)
4 259-d4
Hydrogen

27623 \(HCl\) is added to the following oxides which one would give \({H_2}{O_2}\)

1 \(Mn{O_2}\)
2 \(Pb{O_2}\)
3 \(Ba{O_2}\)
4 None of these
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Hydrogen

27680 When temporary hard water containing \(Mg{(HC{O_3})_2}\) is boiled the ppt. formed is of

1 \(MgC{O_3}\)
2 \(MgO\)
3 \(Mg{(OH)_2}\)
4 None of these
Hydrogen

27620 There is a sample of \(10\) volume of hydrogen peroxide solution. Calculate its strength.........%

1 \(3.00\)
2 \(4.045\)
3 \(2.509\)
4 \(3.035\)
Hydrogen

27621 In lab \({H_2}{O_2}\) is prepared by

1 Cold \({H_2}S{O_4} + Ba{O_2}\)
2 \(HCl + Ba{O_2}\)
3 Conc.\({H_2}S{O_4} + N{a_2}{O_2}\)
4 \({H_2} + {O_2}\)
Hydrogen

27622 The structure of \({H_2}{O_2}\) is

1 259-a4
2 259-b4
3 \(H - O - O - H\)
4 259-d4
Hydrogen

27623 \(HCl\) is added to the following oxides which one would give \({H_2}{O_2}\)

1 \(Mn{O_2}\)
2 \(Pb{O_2}\)
3 \(Ba{O_2}\)
4 None of these
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Hydrogen

27680 When temporary hard water containing \(Mg{(HC{O_3})_2}\) is boiled the ppt. formed is of

1 \(MgC{O_3}\)
2 \(MgO\)
3 \(Mg{(OH)_2}\)
4 None of these
Hydrogen

27620 There is a sample of \(10\) volume of hydrogen peroxide solution. Calculate its strength.........%

1 \(3.00\)
2 \(4.045\)
3 \(2.509\)
4 \(3.035\)
Hydrogen

27621 In lab \({H_2}{O_2}\) is prepared by

1 Cold \({H_2}S{O_4} + Ba{O_2}\)
2 \(HCl + Ba{O_2}\)
3 Conc.\({H_2}S{O_4} + N{a_2}{O_2}\)
4 \({H_2} + {O_2}\)
Hydrogen

27622 The structure of \({H_2}{O_2}\) is

1 259-a4
2 259-b4
3 \(H - O - O - H\)
4 259-d4
Hydrogen

27623 \(HCl\) is added to the following oxides which one would give \({H_2}{O_2}\)

1 \(Mn{O_2}\)
2 \(Pb{O_2}\)
3 \(Ba{O_2}\)
4 None of these