The largest oxidation number exhibited by an element depends on its electronic configuration. With which of the following electronic configurations will the element exhibit the largest oxidation number?
1. 3d14s2
2. 3d34s2
3. 3d54s1
4. 3d54s2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyGenerally transition elements and their salts are coloured due to the presence of unpaired electrons in metal ions. Which of the following compounds are coloured?
a. KMnO4
b. Ce(SO4)2
c. TiCl4
d. Cu2Cl2
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTransition elements show magnetic moment due to spin and orbital motion of electrons. Which of the following metallic ions have almost same spin only magnetic moment?
a. Co2+
b. Cr2+
c. Mn2+
d. Cr3+
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn the form of dichromate, Cr (VI) is a strong oxidising agent in acidic medium but Mo (VI) in MoO3 and W (VI) in WO3 are not because ___________.
(a) | Cr (VI) is more stable than Mo(VI) and W(VI). |
(b) | Mo(VI) and W(VI) are more stable than Cr(VI). |
(c) | Higher oxidation states of heavier members of group-6 of transition series are more stable. |
(d) | Lower oxidation states of heavier members of group-6 of transition series are more stable. |
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTransition elements form binary compounds with halogens. Which of the following elements will form MF3 type compounds?
(a) | Cr | (b) | Co |
(c) | Cu | (d) | Ni |
Choose the correct option
1. | (a, b) | 2. | (b, c) |
3. | (c, d) | 4. | (a, d) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following will not act as oxidizing agents?
a. CrO3
b. MoO3
c. WO3
d. CrO42–
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following ions show a higher spin-only magnetic moment value?
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe electronic configuration of gadolinium (atomic number of 64) is:
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyElectronic configuration of a transition element X in +3 oxidation state is [Ar]. What is its atomic number?
1. | 25 | 2. | 26 |
3. | 27 | 4. | 24 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe electronic configuration of Cu(II) is whereas that of Cu(I) is , the correct statement about the aqueous solution of Cu(II) and Cu(I) among the following is:
1. | Cu(II) is more stable |
2. | Cu(II) is less stable |
3. | Cu(I) and Cu(II) are equally stable |
4. | Stability of Cu(I) and Cu(II) depends on the nature of copper salts |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology