Assertion : Chloral hydrate is a stable compound.
Reason : It is stable due to high molecualr mass.

The most stable compound is

Assertion : Pbl_4 is a stable compound. Reason : Iodide stabilizes higher oxidation state.

Assertion (A) : PbI_4 is a stable compound . Reason (R) : Iodide ion stablised by higher oxidation state

A nucleus of an atom is stable due to

Assertion PbI_4 is a stable compound Reason iodide stabilizes higher oxidation state.

Assertion : Sodium chloride (NaCl) is a stable ionic solid. Reason : NaCl has high lattice enthalpy.

Assertion : Sodium chloride (NaCl) is a stable ionic solid. Reason : NaCl has high lattice enthalpy.

Assertion: PbI_(4) is a stable compound. Reason: Pb^(2+) ions with concentrated solution of KI forms a soluble complex.