The spin only magnetic moment of the complex present in Fehling's reagent is __________ B.M. (Nearest integer).

In the given reaction

The number of chiral carbon/s in product A is ___________.

A hydrocarbon 'X' is found to have molar mass of 80. A 10.0 mg of compound 'X' on hydrogenation consumed 8.40 mL of H₂ gas (measured at STP). Ozonolysis of compound 'X' yields only formaldehyde and dialdehyde. The total number of fragments/molecules produced from the ozonolysis of compound 'X' is _____________.

In the given reaction,

The number of $$\pi$$ electrons present in the product 'P' is _________.