Which of the following sets of quantum numbers is not correctly represented in case of the indicated spectral series of hydrogen atom?

Lyman series n

_{1}

= 1; n

_{2}

= 2, 3, 4,.....

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Balmer series n

_{1}

= 2; n

_{2}

= 3, 4, 5,.....

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Pachen series n

_{1}

= 2; n

_{2}

= 3, 4, 5,.....

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Brackett series n

_{1}

= 4; n

_{2}

= 5, 6, 7,.....

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Solution

The correct option is A Pachen series n $_{1}$ = 2; n $_{2}$ = 3, 4, 5,.....
Series Discovered by regions $n_{2} \to n_{1}$ Number of lines
lyman lyman U.V.region $n_{2} = 2, 3, 4... / n_{1} = 1$ $n_{2} - 1$
Balmer Balmer Visible region $n_{2} = 3, 4, 5.... / n_{1} = 2$ $n_{2} - 2$
Paschen Paschen Infra red (I.R) $n_{2} = 4, 5, 6.... / n_{1} = 3$ $n_{2} - 3$
Bracket Bracket I.R.region $n_{2} = 5, 6, 7.... / n_{1} = 4$ $n_{2} - 4$
Pfund Pfund I.R. region $n_{2} = 6, 7, 8.... / n_{1} = 5$ $n_{2} - 5$
Humphery Humphery far I.R. region $n_{2} = 7, 8, 9.... / n_{1} = 6$ $n_{2} - 6$

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