Nascent hydrogen is prepared by
Na and C2H5OH
Al and NaOH
Zn and dil H2SO4
All of these
The hydride ion is iso-electronic with
He+
He-
Be
He
‘Syngas’ is a mixture of hydrogen with
Oxygen
Nitrogen
Carbon dioxide
Carbon monoxide
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 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
Which of the following compounds acts as a bleaching agent?
MgCO3
NaOH
H2O2
D2O
Ortho and para hydrogens differ in the
number of protons
molecular weight
nature of spins of protons
nature of spins of electrons
Hydrogen can't be produced by the action of dil H2SO4 on
Cu
Zn
Fe
Al
