Statement - 1: 'La' should be the f - block element according to Aufbau principle.
Statement - 2: 57th electron exceptionally enters into the 5d - orbital.

Statement - 1 is true, Statement - 2 is true and Statement - 2 is correct explanation for Statement - 1

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Statement - 1 is true, Statement - 2 is true and Statement - 2 is NOT the correct explanation for Statement - 1

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Statement - 1 is true, Statement - 2 is false

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Statement - 1 is false, Statement - 2 is true

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Solution

The correct option is B Statement - 1 is true, Statement - 2 is true and Statement - 2 is NOT the correct explanation for Statement - 1
$L a \to [X e] 6 s^{2} 5 d^{1}; L a \to$ exception of Aufbau's rule

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Similar questions

Q. Statement - 1: 'La' should be the f - block element according to Aufbau principle.
Statement - 2: 57th electron exceptionally enters into the 5d - orbital.

Q. Statement 1: The number of unpaired electrons in the following ions:

M n^{2 +}, C r^{3 +}, V^{3 +}

and

T i^{3 +}

are 5, 3, 2 and 1 respectively.
Statement 2:

V^{3 +}

has a magnetic moment

(8)^{\frac{1}{2}} B M

Statement 1: $\sim (p \leftrightarrow\sim q)$ is equivalent to $p \leftrightarrow q$
Statement 2: $\sim (p \leftrightarrow\sim q)$ is tautology.
Then which of the following statements is correct

Q. Statement–1: The value of the van der Waals constant ‘a’ is larger for

N H_{3}

than

P H_{3}

.
Statement–2: Hydrogen bonding is present in

N H_{3}

Let $x_{1}, x_{2}, \dots, x_{n}$ be n observations, and let $¯ x$ be their arithmetic mean and $σ^{2}$ be the variance.
Statement – 1: Variance of $2 x_{1}, 2 x_{2}, \dots, 2 x_{n} is 4 σ^{2}$
Statement – 2: Arithmetic mean $2 x_{1}, 2 x_{2}, \dots, 2 x_{n} is 4 ¯ x$

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Statement - 1: 'La' should be the f - block element according to Aufbau principle. Statement - 2: 57th electron exceptionally enters into the 5d - orbital.

The correct option is B Statement - 1 is true, Statement - 2 is true and Statement - 2 is NOT the correct explanation for Statement - 1La→[Xe]6s25d1; La→ exception of Aufbau's rule

Statement - 1: 'La' should be the f - block element according to Aufbau principle.
Statement - 2: 57th electron exceptionally enters into the 5d - orbital.

The correct option is B Statement - 1 is true, Statement - 2 is true and Statement - 2 is NOT the correct explanation for Statement - 1
$L a \to [X e] 6 s^{2} 5 d^{1}; L a \to$ exception of Aufbau's rule