The wire of a flash bulb is made of which of the following?

The golden yellow colour associated with $NaCl$ in a Bunsen flame can be explained on the basis of

Observe the following statements:
Statement-$I$: Both $LiF$ and $CsI$ have low solubility in water.
Statement-$II$: Low solubility of $LiF$ in water is due to its high lattice enthalpy,and that of $CsI$ is due to its smaller hydration enthalpy of ions.

Which of the following reactions is $NOT$ associated with the Solvay process for the manufacture of sodium carbonate?

Which alkali metal during flame test will show color corresponding to maximum wavelength?

In the presence of which of the following does magnesium continue to burn?