" The spectrum of He is expected to be similar to that of "

Which of the following species are expected to give the line spectrum similar to that of hydrogen atom?

Spectrum of Li^(2+) is similar to that of

Spectrum of Li^(2+) is similar to that of

Due to lanthanoid contraction which of the following properties is not expected to be similar in the sme vertical columns of second and third row transition elements ?

Due to lanthanoid contraction which of the following properties is not expected to be similar in the sme vertical columns of second and third row transition elements ?

Helium gives characteristic spectrum with orange light which is similar to that of

Which pair of compounds is expected to show similar colour in aqueous medium?

Which pair of compounds is expected to show similar colour in aqueous medium :

Which pair of compounds is expected to show similar colour in aqueous medium?