CBSE
H2O is polar, whereas BeF2 is not because
electronegativity of F is greaterthan that of O.
H2O involves H-bonding, whereas BeF2 is a discrete molecule
H2O is angular and BeF2 is linear
H2O is linear and BeF2 is angular.
The molarity of pure water is:
100
55.6
18
5.56
H2O2 can be obtained when following reacts with H2SO4 except with
BaO2
PbO2
Na2O2
SrO2
Deuterium oxide is used in nuclear reactor as
source of -particle
source of deuteron
moderator
fuel
Which of the following reactions depicts the reducing action of H2O2 ?
C6H6 + H2O2 C6H5OH + H2O
2I- + 2H+ + H2O2 I2 + H2O
2Mn + 6H+ +5H2O2 2Mn2+ + 5O2 + 8H2O
PbS + 4H2O2 PbSO4 + 4H2O
Which of the following reactions increases the production of dihydrogen from synthesis gas?
Azeotropic mixture of HCl and water has:
20.2% HCl
22.2% HCl
63% HCl
84% HCl
The density of SO2 at STP is 2.86 kg m3. Its density at 819°C and 2 atmospheres is:
0.715 kg m-3
1.43 kg m-3
2.86 kg m-3
4.26 kg m-3
Fenton's reagent is
NaOH + FeSO4
H2O2 + FeSO4
H2O2 + ZnSO4
H2O2 + MgSO4
The correct order of solubility ofthe following compounds in water is
Ba(OH)2 < Mg(OH)2
BaCO3 > CaCO3
Ca(OH)2 Mg(OH)2
CaSO4 < MgSO4