Given below are two statements :

Statement I : The decrease in first ionization enthalpy from B to Al is much larger than that from Al to Ga.

Statement II : The d orbitals in Ga are completely filled.

In the light of the above statements, choose the most appropriate answer from the options given below

Given below are two statements :

Statement I : Nickel is being used as the catalyst for producing syn gas and edible fats.

Statement II : Silicon forms both electron rich and electron deficient hydrides.

In the light of the above statements, choose the most appropriate answer from the options given below :

Which of the following relations are correct?

(A) $$\mathrm{\Delta U=q+p\Delta V}$$

(B) $$\mathrm{\Delta G=\Delta H-T\Delta S}$$

(C) $$\Delta \mathrm{S}=\frac{q_{rev}}{T}$$

(D) $$\mathrm{\Delta H=\Delta U-\Delta nRT}$$

Choose the most appropriate answer from the options given below :

A solution of $$\mathrm{Cr O_5}$$ in amyl alcohol has a __________ colour.