Which of the following processes is an endothermic reacti...
Which of the following processes is an endothermic reaction?
Dissolving NH4CI crystals in water
Addition of concentrated H2SO4
Dissolving NaOH pellets in water
Passing SO3 gas into water
Correct answer is A
No explanation has been provided for this answer.
A given amount of gas occupies 10.0 dm3 at 4atm and 273°C. The number of moles of the gas presen...
The line observed in the sample hydrogen spectrum are due to emission of? ...
NaCI(s) + H2SO4(I) → HCI(g) + NaHSO4(s). In the reaction above, H2SO4 behaves as?...
A salt that absorbs moisture from the atmosphere without forming a solution is said to be ...
Allotropes of an element differ in their ...
In which of the following is the oxidation number of sulphur equal to -2? ...