Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A : In the Ellingham diagram, a sharp change in slope of the line is observed for $$\mathrm{Mg} \rightarrow \mathrm{MgO}$$ at $$\sim 1120^{\circ} \mathrm{C}$$
Reason R: There is a large change of entropy associated with the change of state
In the light of the above statements, choose the correct answer from the options given below
'A' in the above reaction is:
Match List I with List II
LIST I | LIST II | ||
---|---|---|---|
A. | Nitrogen oxides in air | I. | Eutrophication |
B. | Methane in air | II. | pH of rain water becomes 5.6 |
C. | Carbon dioxide | III. | Global warming |
D. | Phosphate fertilisers in water | IV. | Acid rain |
Choose the correct answer from the options given below :
Given below are two statement: one is labelled as Assertion $$\mathbf{A}$$ and the other is labelled as Reason $$\mathbf{R}$$
Assertion A: $$5 \mathrm{f}$$ electrons can participate in bonding to a far greater extent than $$4 \mathrm{f}$$ electrons
Reason R: $$5 \mathrm{f}$$ orbitals are not as buried as $$4 \mathrm{f}$$ orbitals
In the light of the above statements, choose the correct answer from the options given below