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Q. No.Assertion (A) Separation of Zr and Hf is difficult.
Reason (R) Because Zr and Hf lie in the same group of the periodic table.
1. Both assertion and reason are true, and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of assertion.
3. Assertion is not true but the reason is true.
4. Both assertion and reason are false.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion: Actinoids form relatively less stable complexes as compared to lanthanoids.
Reason: Actinoids can utilise their 5f orbitals along with 6d orbitals in bonding but lanthanoids do not use their 4f orbital for bonding.
1. Both assertion and reason are true, and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of assertion.
3. Assertion is not true but the reason is true.
4. Both assertion and reason are false.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion: Cu cannot liberate hydrogen from acids.
Reason: Because it has positive electrode potential.
1. Both assertion and reason are true, and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of assertion.
3. Assertion is not true but the reason is true.
4. Both assertion and reason are false.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion (A) The highest oxidation state of osmium is +8 .
Reason (R) Osmium is a 5d-block element.
1. Both assertion and reason are true, and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of assertion.
3. Assertion is not true but the reason is true.
4. Both assertion and reason are false.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion (A) C iodide is not known.
Reason (R) C oxidises to iodine.
1. Both assertion and reason are true, and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of assertion.
3. Assertion is not true but the reason is true.
4. Both assertion and reason are false.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the property given in Column I with the element given in Column II.
|
Column I ( Property) |
Column II (Element) |
|
A. Lanthanoid which shows + 4 oxidation state |
1. Pm |
|
B. Radioactive lanthanoid |
2. Ce |
|
C. Lanthanoid which has 4 electronic configurations in +3 oxidation state |
3. Lu |
|
D. Lanthanoid which has 4 electronic configurations in +3 oxidation state |
4. Gd |
Codes
A B C D
1. 2 4 1 3
2. 1 2 3 4
3. 2 1 4 3
4. 4 1 3 2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the statements given in Column I with the oxidation states given in Column.
|
Column I |
Column II |
|
A. Oxidation state of Mn in is |
1. +2 2. +3 |
|
B. Most stable oxidation state of Mn is |
3. +4 |
|
C. Most stable oxidation state of Mn in oxides is |
4. +5 |
|
D. Characteristic oxidation state of lanthanoids is |
5. +7 |
Codes
A B C D
1. 2 3 4 1
2. 3 1 5 2
3. 5 4 3 2
4. 4 5 3 2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the properties given in Column I with uses given in Column II
| Column I-(Property) | Column II-(Metal) | ||
| A. | An element that can show +8 oxidation state | 1. | Mn |
| B | 3d block element that can show up to +7 | 2. | Cr |
| C | 3d block element with the highest melting point | 3. | Os |
| 4. | Fe | ||
| A | B | C | |
| 1. | 3 | 1 | 2 |
| 2. | 1 | 2 | 3 |
| 3. | 1 | 4 | 3 |
| 4. | 4 | 2 | 3 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the compounds/elements given in Column I with uses given in Column II.
|
Column |
Column II |
|
A. Lanthanoid oxide |
1. Petroleum cracking |
|
B. Lanthanoid |
2. Television screen |
|
C. Mischmetal |
3. Lanthanoid metal + iron |
|
D. Mixed oxides of lanthanoids are employed |
4. Production of iron alloy |
Codes
A B C D
1. 2 1 4 3
2. 1 2 3 4
3. 2 4 3 1
4. 4 1 3 2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the following :
| Elements | Electronic configuration |
| i. 61 | a. [Rn]5f136d0 7s 2 |
| ii. 91 | b. [Xe]4f56s2 |
| iii. 101 | c. [Rn]5f146d77s2 |
| iv. 109 | d. [Rn] 5f2 6d17s2 |
| i | ii | iii | iv | |
| 1. | b | d | a | c |
| 2. | c | a | d | b |
| 3. | c | d | a | b |
| 4. | a | c | b | d |
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