What is the electronic configuration of transition elements?

1. (n − 1)d^1-10 ns^0-2

2. (n − 1)d^1-10 ns²

3. nf² np^1-6

4. nd² np^1-6

Subtopic: d-Block Elements- Properties & Uses |

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The different oxidation states exhibited by the lanthanoids are

1. +2, -3, +4

2. -2, -3, -4

3. +2, +3, -4

4. +2, +3, +4

Subtopic: f-Block Elements- Properties & Uses |

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The "Disproportionation" reaction means that

1.	A relatively less stable oxidation state undergoes an oxidation−reduction reaction.
2.	A relatively more stable oxidation state undergoes an oxidation−reduction reaction.
3.	A relatively less stable oxidation state undergoes a hydrogenation reaction.
4.	A relatively more stable oxidation state undergoes a hydrogenation reaction.

Subtopic: d-Block Elements- Properties & Uses |

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In the 3d series, a metal with a +1 oxidation state is:

1. Mn

2. Cu

3. Fe

4. Zn

Subtopic: d-Block Elements- Properties & Uses |

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The number of unpaired electrons in the gaseous ions ${Mn}^{3 +}, {Cr}^{3 +}, V^{3 +,} and {Ti}^{3 +}$ are, respectively:

1. 3, 2, 3, and 1

2. 2, 2, 3, and 1

3. 4, 3, 2, and 1

4. 1, 2, 3, and 4

Subtopic: d-Block Elements- Properties & Uses |

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Alloy that contains lanthanoid metals is-

1. Mischmetal

2. Permalloy

3. Supermalloy

4. Brass

Subtopic: f-Block Elements- Properties & Uses |

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Give below are some atomic numbers:

29, 59, 74, 95, 102, 104

The atomic numbers of the inner transition elements among the above are :

1. 29, 59, 74

2. 59, 95, 102

3. 95, 102, 104

4. 59, 74, 95

Subtopic: f-Block Elements- Properties & Uses |

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The electronic configuration of the last element of actinoids is

1. Thorium, Th: $[Rn] 5 f^{14} 6 d^{1} 7 s^{2}$

2. Lawrencium, Lr: $[Rn] 5 f^{14} 6 d^{1} 7 s^{2}$

3. Neptunium, Np: $[Rn] 5 f^{14} 6 d^{1} 7 s^{2}$

4. Protactinium, Pa: $[Rn] 5 f^{14} 6 d^{1} 7 s^{2}$

Subtopic: f-Block Elements- Properties & Uses |

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The number of 3d electrons in each of the Cr³⁺ ions will be:

1. 5

2. 6

3. 3

4. 7

Subtopic: d-Block Elements- Properties & Uses |

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The correct statement regarding Ag is

1.	It is a hard metal.
2.	It is not a transition element.
3.	It has a partially filled d orbital in a +2 oxidation state. Thus, it is a transition element.
4.	None of the above

Subtopic: d-Block Elements- Properties & Uses |

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Select Chapter Topics:

d-Block Elements- Properties & Uses

f-Block Elements- Properties & Uses

Lanthanoid & Actinoids Contraction

Chemistry of Mn and Cr Compounds

What is the electronic configuration of transition elements?

1. (n − 1)d^1-10 ns^0-2

2. (n − 1)d^1-10 ns²

3. nf² np^1-6

4. nd² np^1-6

Select Chapter Topics:

d-Block Elements- Properties & Uses

f-Block Elements- Properties & Uses

Lanthanoid & Actinoids Contraction

Chemistry of Mn and Cr Compounds

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Select Chapter Topics:

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Lanthanoid & Actinoids Contraction

Chemistry of Mn and Cr Compounds

What is the electronic configuration of transition elements? 1. (n − 1)d1-10 ns0-2 2. (n − 1)d1-10 ns2 3. nf2 np1-6 4. nd2 np1-6

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Select Chapter Topics:

d-Block Elements- Properties & Uses

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Lanthanoid & Actinoids Contraction

Chemistry of Mn and Cr Compounds

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What is the electronic configuration of transition elements?

1. (n − 1)d^1-10 ns^0-2

2. (n − 1)d^1-10 ns²

3. nf² np^1-6

4. nd² np^1-6