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Prince Second
Subject: Chemistry
, asked on 18/6/17
Please tell what's the correct hybridisation, magnetic behaviour, and formula of geometrical or optical isomer for the complexes
[
M
n
(
C
N
)
6
]
-
3
[
C
o
(
C
2
O
4
)
3
]
-
3
[
F
e
(
C
N
)
6
]
-
3
Answer
1
Shruti
Subject: Chemistry
, asked on 17/6/17
I m confused .. I think it should be pent-3-nitride
Answer
3
Shruti
Subject: Chemistry
, asked on 16/6/17
Ch3cch3ch3-oh
Answer
3
Sandip
Subject: Chemistry
, asked on 15/6/17
Underwhat condition does formaldehyde undergo aldol condensation
Answer
1
Tarul Jhalani
Subject: Chemistry
, asked on 10/6/17
Give me correct explanation of each option
Ammonia forms the complex
C
u
N
H
3
4
2
+
with copper ions in alkaline solution but not in acid solution. The reason for it is:
(1) in alkaline solution
C
u
(
O
H
)
2
is precipitated which is soluble in excess of alkali.
(2) copper hydroxide is amphoteric.
(3) in acidic solution hydration protects
C
u
2
+
ions.
(4) in acidic solution protons coordinates with ammonia molecule forming
N
H
4
+
ions and
N
H
3
molecules are not available.
Answer
1
Tarul Jhalani
Subject: Chemistry
, asked on 31/5/17
B-2 explain me for each option
B-2. Which of the following names is impossible ?
(A) Potassium tetrafluoridooxidochromate (Vl) (B) Barium tetrafluoridobromate (lll)
(C) Dichlorobis (urea) copper (ll) (D) All are impossible
Answer
1
Ayesha Jahan
Subject: Chemistry
, asked on 26/5/17
What is the coordination no. of Ag in its +1 oxidation state??
Answer
1
Ankur Agrawal
Subject: Chemistry
, asked on 14/5/17
I think answer sholu be 6 as . shown plz check where i am wrong
Answer
1
Vrutik Sonara
Subject: Chemistry
, asked on 8/5/17
How Many ions will be prodused on ionising aquatic solution of "Ferric Hexa Cyno Ferrate (III)" ???
Answer
1
Ankur Agrawal
Subject: Chemistry
, asked on 7/5/17
Here answer is vander waal strain . Plz explain how . Also if vanderwaal strain is the answr then what is significanceof torsional strain
Answer
1
Ankur Agrawal
Subject: Chemistry
, asked on 6/5/17
Solve this:
Answer
3
Ankur Agrawal
Subject: Chemistry
, asked on 6/5/17
Plz explain.q.23 . How to determine whether central.atom show 4.or 6 oxidation number
Answer
1
Ankur Agrawal
Subject: Chemistry
, asked on 6/5/17
Plz answer34. Also plz tell whetherL behave as strong field or weak ligand
Answer
1
Ankur Agrawal
Subject: Chemistry
, asked on 2/5/17
Plz
Answer
1
Superb
Subject: Chemistry
, asked on 20/4/17
code c q.no 2 jee mains offline as already asked you said the ans was option 1, and not 2 (that is reported by cbse key) so can we challenge that question are you sure! please help and tell me fast!!
Answer
1
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What are you looking for?
Ammonia forms the complex with copper ions in alkaline solution but not in acid solution. The reason for it is:
(1) in alkaline solution is precipitated which is soluble in excess of alkali.
(2) copper hydroxide is amphoteric.
(3) in acidic solution hydration protects ions.
(4) in acidic solution protons coordinates with ammonia molecule forming ions and molecules are not available.
B-2. Which of the following names is impossible ?
(A) Potassium tetrafluoridooxidochromate (Vl) (B) Barium tetrafluoridobromate (lll)
(C) Dichlorobis (urea) copper (ll) (D) All are impossible