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Tulsi Mehta
Subject: Chemistry
, asked on 18/10/17
What is the difference between trigonal pyramid and trigonal bipyramid shape. Plx explain wih examples.
Answer
1
Sreelakshmi
Subject: Chemistry
, asked on 15/10/17
(a)
Tripositive and tetrapositive ions are rare when compared to dipositive an unipositive ions.
Answer
1
Devu
Subject: Chemistry
, asked on 11/10/17
Use resonance structure to describe the electronic structure of formate ion (HCOO
-
).
Answer
1
Devu
Subject: Chemistry
, asked on 11/10/17
Are
d
2
sp
3
and
sp
3
d
2
hybridisation the same ?
Answer
2
Meenakshi Venkat
Subject: Chemistry
, asked on 9/10/17
please upload animated video for VSEPR and VBT in class 11 chemistry in short time
Answer
2
Devu
Subject: Chemistry
, asked on 8/10/17
Why is the concept of resonance needed ? What is a resonance hybrid ? How does it differ from the resonance structures drawn for a molecule ?
Answer
1
Devu
Subject: Chemistry
, asked on 8/10/17
The phosphine molecule , PH
3
, has a trigonal pyramidal shape with H-P-H bond angles equal to 93.7
0
. Give the orbital diagram for phophorus in the PH
3
molecule and indicate the orbitals that share electrons with those from hydrogen.
Answer
1
Devu
Subject: Chemistry
, asked on 6/10/17
Prove that the
hybridisation
of Be is sp in BeCl
2
.
Answer
2
Tulsi Mehta
Subject: Chemistry
, asked on 6/10/17
no. of electrons in N2, CO, NO+
Answer
2
Rajib
Subject: Chemistry
, asked on 5/10/17
Q. Which one is correct.
Answer
1
Ranjitha R
Subject: Chemistry
, asked on 4/10/17
why do phosphorous pcl5 has ten electrons. justify
Answer
3
Subhashree
Subject: Chemistry
, asked on 3/10/17
Draw a shape for kossel lewiside blcl2
Answer
1
Shubhangi Upadhyay
Subject: Chemistry
, asked on 3/10/17
Pls ans fast.....urgent
Q) 20
Q.20. A student working in the laboratory kept an aqueous solution of ferrous sulphate in a vessel made up of zinc. After a few days, he found that vessel had developed holes and Cracks.
a) Why did the vessel develop holes in it?
b) Name the type of redox reaction and mention the balanced chemical reaction involved in it.
c) What is the value associated with this?
Answer
1
Shubhangi Upadhyay
Subject: Chemistry
, asked on 3/10/17
Q.19. Calculate the temperature of 2 moles of sulphur dioxide gas contained in 5 L vessel at 10 bar pressure. Given that for
S
o
2
gas, van der Waal's constants are : a = 6.7 bar
L
2
m
l
o
-
2
and b = 0.0564 L
m
o
l
-
1
.
Answer
2
Kartik Agarwal
Subject: Chemistry
, asked on 2/10/17
Bond angle of NH3+ and H3O+
Answer
2
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Q) 20
Q.20. A student working in the laboratory kept an aqueous solution of ferrous sulphate in a vessel made up of zinc. After a few days, he found that vessel had developed holes and Cracks.
a) Why did the vessel develop holes in it?
b) Name the type of redox reaction and mention the balanced chemical reaction involved in it.
c) What is the value associated with this?