Which of these gases can be dried with concentrated H2SO4...
Which of these gases can be dried with concentrated H2SO4?
HBr
H2S
NH3
SO2
Correct answer is D
In the preparation of SO2, we have the resultant reaction from heating the mixture of Na2SO3 and HCl as:
Na2SO3(aq)+2HCl(aq)→2NaCl(aq)+H2O(l)+SO2(g)
Passing the gas evolved through conc. H2SO4, we collect SO2 by DOWNWARD DELIVERY, leaving NaCl in the flask.
Elements X and Y have electronic configurations 1s22s22p4 and 1s22s22p\(^6\...
The substance least considered as a source of environmental pollution is ...
One of the characteristics of transition metals is ...
The gas which causes global warming is? ...
An oxide XO2 has a vapour density of 32. What is the atomic mass of X?...
What is the chemical symbol for Terbium? ...
Which of the following compounds reacts readily with sodium to liberate hydrogen? ...
When cathode rays are deflected onto the electrode of an electrometer, the instrument becomes? ...