The molarity of a 100 mL solution containing 5.1 g of hydrogen peroxide is
0.15 M
1.5 M
3.0 M
50.0 M
A mixture of hydrazine (N2H4) and 58 - 60% solution of H2O2 is used as
antiseptic
fertilizer
rocket fuel
None of the above
Heavy water (D2O) freezes at
0ºC
3.8ºC
- 3.8ºC
38ºC
Ortho and para hydrogens differ in the
number of protons
molecular weight
nature of spins of protons
nature of spins of electrons
Which of the following compounds acts as a bleaching agent?
MgCO3
NaOH
H2O2
D2O
Which of the following statements is not correct?
H2O2 oxidizes Fe(II) to Fe(III)
H2O2 can be obtained by electrolysis of dilute H2SO4
H2O2 reduces Mn (VII) to Mn(II)
H2O2 is a weak base
The O — O — H bond angle in H2O2 is
106º
109º 28'
120º
97º
Nascent hydrogen is prepared by
Na and C2H5OH
Al and NaOH
Zn and dil H2SO4
All of these
