Chemistry Test ...

Which of the following represents the correct order of increasing first ionization enthalpy for Ca, Ba, S, Se and Ar.

Which among the given haloalkanes develop colour when exposed to light?

Find out the major products from the following reaction sequence.

The atomic numbers of elements \(X, Y\) and \(Z\) are \(19\), \(21\) and \(25\) respectively. The order of number of electrons present in the M shells of these elements ______.

Crystalline solids are _________ in nature.

Which of the following is a closed system?

Determine the empirical formula of an oxide of iron which has \(69.9 \%\) iron and \(30.1 \%\) dioxygen by mass.

The ligand \(N \left( CH _{2} CH _{2} NH _{2}\right)_{3}\):

Among the following compounds, the one which can be dehydrated most easily is:

Across the lanthanide series, the basicity of the lanthanide hydroxides?