Which amongst the following options is the correct relation between change in enthalpy and change in internal energy?
Match List I with List II:
| List I (Oxoacids of Sulphur) |
List II (Bonds) |
||
|---|---|---|---|
| (A) | Peroxodisulphuric acid | (I) | Two S-OH, Four S=O, One S-O-S |
| (B) | Sulphuric acid | (II) | Two S-OH, One S=O |
| (C) | Pyrosulphuric acid | (III) | Two S-OH, Four S=O, One S-O-O-S |
| (D) | Sulphurous acid | (IV) | Two S-OH, Two S=O |
Choose the correct answer from the options given below:
Identify the major product obtained in the following reaction:
Which of the following statements are INCORRECT?
A. All the transition metals except scandium form MO oxides which are ionic.
B. The highest oxidation number corresponding to the group number in transition metal oxides is attained in $$\mathrm{Sc}_{2} \mathrm{O}_{3}$$ to $$\mathrm{Mn}_{2} \mathrm{O}_{7}$$.
C. Basic character increases from $$\mathrm{V}_{2} \mathrm{O}_{3}$$ to $$\mathrm{V}_{2} \mathrm{O}_{4}$$ to $$\mathrm{V}_{2} \mathrm{O}_{5}$$.
D. $$\mathrm{V}_{2} \mathrm{O}_{4}$$ dissolves in acids to give $$\mathrm{VO}_{4}^{3-}$$ salts.
E. $$\mathrm{CrO}$$ is basic but $$\mathrm{Cr}_{2} \mathrm{O}_{3}$$ is amphoteric.
Choose the correct answer from the options given below: