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Akshay Kumar
Subject: Chemistry
, asked on 19/8/17
IRON SHOW +6 OXIDATION STATE BUT NOT +5 WHY ?
Answer
1
Akshay Kumar
Subject: Chemistry
, asked on 16/8/17
HOW DOES Fe SHOW +6 O.S BUT NOT +5, SIMILARLY Co DOES NOT SHOW +5 O.S ?
Answer
1
Varnika Dhiman
Subject: Chemistry
, asked on 14/8/17
What is enthalpy of atomisation? Why d-block elements have high Enthalpy of Atomisation?
Answer
2
Varnika Dhiman
Subject: Chemistry
, asked on 14/8/17
Why melting point falls regularly as the atomic number increases ?!.. Why there is a sudden down fall in melting point of Mn & Tc ?!..
[Answer both questions here..as they are inter-related.]
Answer
1
Bhawna Sharma
Subject: Chemistry
, asked on 6/8/17
What is the reason for this?????
Answer
1
Abhiram Sankar
Subject: Chemistry
, asked on 24/7/17
Mention the direct consequences of the following factors on the chemical behaviour of lanthanoid
a) They have incompletely filled d orbitals in the ground state or in one of the oxidation state
b) They contribute more valence electron per atom in the formation of metallic bond.
[ NO LINKS PLEASE ]
Answer
1
Abhiram Sankar
Subject: Chemistry
, asked on 23/7/17
Fluorides of lathanoid element elements are ionic whereas bromides and iodides are covalent. Give reason.
[ NO LINKS PLEASE ]
Answer
1
Sreevin Vinod
Subject: Chemistry
, asked on 29/4/17
Solve this:
Answer
2
Sreevin Vinod
Subject: Chemistry
, asked on 29/4/17
Q no 5
Answer
1
Sreevin Vinod
Subject: Chemistry
, asked on 29/4/17
Q no 4
Answer
1
Sreevin Vinod
Subject: Chemistry
, asked on 29/4/17
2 question
Answer
2
Krishnamurthy Saranya
Subject: Chemistry
, asked on 27/4/17
Is SO
2
a dehydrating agent if no, why? as H
2
SO
4
is a dehydrating agent
Answer
1
Kshitij Gaur
Subject: Chemistry
, asked on 25/4/17
Copper exhibit +2 and+1 oxidation state whereas Zinc shows only +2 oxidation state. Why?
Answer
1
Kshitij Gaur
Subject: Chemistry
, asked on 25/4/17
Why Mn+2 oxidising in nature
Answer
1
Hainaa
Subject: Chemistry
, asked on 2/4/17
76 th qn; with explanation please.,b )is the correcta option pls explain
Answer
1
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Why melting point falls regularly as the atomic number increases ?!.. Why there is a sudden down fall in melting point of Mn & Tc ?!..
[Answer both questions here..as they are inter-related.]
a) They have incompletely filled d orbitals in the ground state or in one of the oxidation state
b) They contribute more valence electron per atom in the formation of metallic bond.
[ NO LINKS PLEASE ]
[ NO LINKS PLEASE ]