Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Boron is unable to form $$\mathrm{BF}_{6}^{3-}$$.
Reason (R) : Size of B is very small.
In the light of the above statements, choose the correct answer from the options given below :
In neutral or alkaline solution, $$\mathrm{MnO}_{4}^{-}$$ oxidises thiosulphate to :
Low oxidation state of metals in their complexes are common when ligands :
Given below are two statements:
Statement I : The non bio-degradable fly ash and slag from steel industry can be used by cement industry.
Statement II : The fuel obtained from plastic waste is lead free.
In the light of the above statements, choose the most appropriate answer from the options given below :