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7 months ago

Chemistry Chemistry Coordination Compounds

In which of the following order the given complex ions are arranged correctly with respect to their decreasing spin only magnetic moment?

(i) [FeF6]3−, (ii) [Co(NH3)6]3+, (iii) [NiCl4]2− , (iv) [Cu(NH3)4]2+
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Payal Gupta

Contributor-Level 10

I > III > IV > II

[FeF6]3−→Fe3+−3d5− all are unpaired (n = 5)

[Co (NH3)6]3+→Co3+−3d6− all are paired (n = 0)

[NiCl4]2−→Ni2+−3d8→ (n=2)

[Cu (NH3)4]2+→Cu++→3d9→ (n=1)

New answer posted

7 months ago

Chemistry Class 12th

The method used for the purification of Indium is
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Payal Gupta

Contributor-Level 10

Indium and other semi conducting materials behaves different characteristic of impurities and pure particle at high temperature zone. Hence in metallurgical process it is refined by the zone refining.

New answer posted

7 months ago

Chemistry Class 12th

Which statement is correct?
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alok kumar singh

Contributor-Level 10

Buna-S required nascent oxygen

Butadiene + styrene → [ 0 ] (Buna-S)

New answer posted

7 months ago

Chemistry Structure of Atom

The Plots of radial distribution functions for various orbitals of hydrogen atom against 'r' are given below:

The correct plot for 3s orbital is:

 
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A
alok kumar singh

Contributor-Level 10

For 3S number of radial nodes are

= n − l − 1 = 3 − 0 − 1 = 2

          

New answer posted

7 months ago

Chemistry Class 11th

The solubility of Ca(OH)2 in water is:

[Given : The solubility product of Ca(OH)2 in water = 5.5 * 10-6]
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Payal Gupta

Contributor-Level 10

Ca (OH)2 ?  Ca+ + 2OH-

S                      S           2S

∴ K s p = 4 S 3

            

New answer posted

7 months ago

Chemistry Class 12th

Identify A and B in the chemical reaction

 
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alok kumar singh

Contributor-Level 10

Kindly go through the solution

 

New answer posted

7 months ago

Chemistry Class 12th

The correct sequence of reagents used in the preparation of 4-bromo-2-nitroethyl benzene from benzene is
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Payal Gupta

Contributor-Level 10

Conversion form

New answer posted

7 months ago

Chemistry Chemistry Chemical Bonding and Molecular Structure

Which among the following species has unequal bond lengths?
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Payal Gupta

Contributor-Level 10

SF4 has sp3d hybridization and one type is axial while other type is equatorial

SiF4 has sp3 (all bonds are equal)

B F 4 − has sp3 (all bonds are equal)

XeF4 has sp3d2 and shape is sq. planar (All bonds are equal)

New answer posted

7 months ago

Chemistry Class 12th

Which one of the following statements is FALSE for hydrophilic sols?
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Payal Gupta

Contributor-Level 10

Viscosity of the hydrophilic sol is always higher than H2O, because dispersed phase particle attracted by dispersion medium.

New answer posted

7 months ago

Chemistry Chemistry Organic Chemistry

Consider the following chemical reaction.

H C ≡ C H → 2 )     C O ,     H C l ,     A l C l 3 1 )     R e d     h o t     F e     t u b e ,     8 7 3 K P r o d u c t            

The number of sp2 hybridized carbon atoms (s) present in the product is--------------.
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A
alok kumar singh

Contributor-Level 10

Kindly go through the solution

 

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