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ICSE-d- AND- f- BLOCK ELEMENTS-EXERCISE (PART-II) (DESCRIPTIVE QUESTIONS)(SHORT ANSWER QUESTIONS)
- Comment upon the statement that: (i) The electronic configurations o...
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- Which is the last element in the series of the actinoids? Write the el...
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- In what way is the electronic configuration of the transition elements...
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- What are different oxidation states exhibit by lanthanoids?
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- Explain the following terms : (a) Chemistry of all Lanthanoids is so...
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- What is the electronic difference between lanthanoids and actinoids? W...
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- Name the elements with atomic number 58 and 59 and write their electro...
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- What are inner-transition elements? Write their general electronic con...
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- Define lanthanoids. Give three differences between lanthanoids and act...
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- What happens when : (i) Acidified K2Cr2O7 reacts with Kl. (ii) K2...
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- The sums of first and second ionisation energies and those of third an...
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- Of the ions Ag^(+),Co^(2+) and Ti^(4+) ,which ones will be coloured in...
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- Among ionic species, Sc^(3+), Ce^(4+) and Eu^(2+), which one is a goo...
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- of the ions Co^(2+), Sc^(3+) and Cr^(3+) which one will give coloured ...
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- A transition element forms alloys with other transition metals easily....
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- (i) Give the formula which expresses the general electronic configurat...
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- [Ti(H2O)6]^(3+) is coloured while [Sc(H2O)6]^(3+) is colourless . Expl...
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- Represent the reaction of acidified K2Cr2O7 with: (i) KI solution (...
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- Assertion : KMNO4 acts as an oxidising agent in acidic, basic or neutr...
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- How is that in alkaline solution we have chromate and in acidic soluti...
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