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Daksh sohum
@daksh-sohum
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Joined: Mar 13, 2022
Last seen: May 1, 2022
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Topics: 163 / Replies: 0
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Topic
Describe the preparation of potassium dichromate from iron chromite ore. What is the effect of increasing pH on a solution of potassium dichromate?
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 99
Topic
How is the variability in oxidation states of transition metals different from that of non-transition metals? Illustrate with examples.
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 96
Topic
What are interstitial compounds? Why are such compounds well known for transition metals?
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 90
Topic
Explain giving reasons: (i) Transition metals and many of their compounds show paramagnetic behaviour. (ii) The enthalpies of atomisation of the transition metals are high.
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 90
Topic
What are the different oxidation states exhibited by the lanthanoids?
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 81
Topic
In what way is the electronic configuration of the transition elements different from that of the non-transition elements?
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 80
Topic
What are the characteristics of the transition elements and why are they called transition elements? Which of the d-block elements may not be regarded as the transition elements?
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 80
Topic
What is lanthanoid contraction? What are the consequences of lanthanoid contraction?
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 98
Topic
Name the ox metal anions of the first series of the transition metals in which the metal exhibits the oxidation state equal to its group number.
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 86
Topic
To what extent do the electronic configurations decide the stability of oxidation states in the first series of the transition elements? Illustrate your answer with examples.
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 93
Topic
Explain briefly how +2 state becomes more and more stable in the first half of the first row transition elements with increasing atomic number?
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 90
Topic
Why are Mn^2+ compounds more stable than Fe^2+ towards oxidation to their +3 state?
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 79
Topic
Write down the electronic configuration of:
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 84
Topic
Actinoid contraction is greater from element to element than lanthanoid contraction. Why?
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 81
Topic
Explain why Cu^+ ion is not stable in aqueous solutions?
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 76
Topic
Calculate the 'spin only' magnetic moment of M^2+(aq) ion (Z = 27).
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 104
Topic
Which is a stronger reducing agent Cr^2+ or Fe^2+ and why?
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 86
Topic
Why is the highest oxidation state of a metal exhibited in its oxide or fluoride only?
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 100
Topic
How would you account for the irregular variation of ionization enthalpies (first and second) in the first series of the transition elements?
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 87
Topic
The E^0(M^2+/M) value for copper is positive (+0.34V). What is possibly the reason for this?
3 years ago
Forum
The d-and f-Block Elements
Replies: 0
Views: 78
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