The key step in the manufacturing of H2SO4 by contact process is
absorption of SO3 in H2SO4 to give oleum
dilution of oleum with water
burning of sulphur in air to generate SO2
catalytic oxidation of SO2 with O2 to give SO3
Ammonia on reaction with chlorine forms an explosive NCl3. What is themole ratio of NH3 and Cl2 required for this reaction?
8:3
1:1
1:3
10:1
Xenon reacts with fluorine at 873 Kand 7 bar to form XeF4. It his reaction, the ratio of xenon and fluorine required is
1:5
10:1
1:3
5:1
In Haber's process, 50.0 g of N2(g) and 10.0 g of H2(g) are mixed to produce NH3 (g). What is the number of moles of NH3 (g) formed?
3.33
2.36
2.01
5.36
For car battery which one is correct statement?
cathode is lead dioxide (PbO2) and anode is copper (Cu).
cathode is copper (Cu) and anode is lead dioxide (PbO2)
cathode is copper (Cu) and anode is lead (Pb)
cathode is lead dioxide (PbO2) and anode is lead (Pb)
Which of the following is the most basic oxide?
SO3
SeO3
PoO
TeO
C.
PoO
Oxygen is common in all oxides of group-16, and electronegativity decreases as we down the group thus basic nature of oxide increase. Hence PoO is the most basic oxide.