The magnetic moment of $$\left[\mathrm{NiCl}_4\right]^{2-}$$

[Atomic number : $$\mathrm{Ni}=28$$ ]

Assertion (A): Proteins are polymers of $$\alpha$$-amino acids connected by a peptide bond.

Reason (R): A tetrapeptide contains 4 amino acids linked by 4 peptide bonds.

Assertion (A): For a zero order reaction the unit of rate constant and rate of reaction are same.

Reason (R) : Rate of reaction for zero order reaction is independent of concentration of reactant.

Assertion (A): Acetic acid but not formic acid can be halogenated in presence of red $$\mathrm{P}$$ and $$\mathrm{Cl}_2$$.

Reason (R): Acetic acid is a weaker acid than formic acid.