Classification ...

$$EA_{1}$$ values of the following element has highest values.

Electron affinity of chlorine is -348 kJ/mol. Then the electron affinity of fluorine is ........... in kJ/mol

Wurtz reaction involves the reduction of alkyl halide with

The pair of elements that have similar chemical properties are :

Elements of which of the following group form anions most easily?

Regarding electron affinity, which of the following is wrong?

             Column-I                                             Column-II
(Atomic number of elements)                         (IUPAC name)
             (A) $$105$$                                                    (P) Uun
             (B) $$107$$                                                    (Q) Uns
             (C) $$109$$                                                    (R) Unp
             (D) $$110$$                                                    (S) Une

What is the value of electron gain enthalpy of $$Na^+$$ if $$IE_{1}$$ of $$Na$$ = $$5.1\ eV$$?

Considering the elements $$F,\ Cl,\ O$$ and $$N$$ the correct order of their chemical reactivity in terms of oxidizing property is:

The following are some statements about diagonal relationship.
i) It is due to nearly same size, electronegativity and same polarising power
ii) $$Li$$ has similar properties with $$H_{2}$$
iii) $$BeO$$, $$Al_{2}O$$ are amphoteric in nature
iv) All $$d$$-block elements are stable