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
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
Deuterium oxide is used in nuclear reactor as
source of -particle
source of deuteron
moderator
fuel
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 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
Which of the following reactions increases the production of dihydrogen from synthesis gas?
C.
The production of dihydrogen can be increased by reacting carbon monoxide of syngas mixtures with steam in the presence of iron chromate as catalyst.