Chemistry

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8 months ago

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P
Payal Gupta

Contributor-Level 10

Structure PCl5 is trigonal bipyramidal,

Hybridization of P is sp3d

Equatorial bonds lie in a plane

Axial bonds are longer than equatorial bonds so axial bonds are weaker than equatorial bonds.

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8 months ago

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Payal Gupta

Contributor-Level 10

Fluorine forms only one oxoacid which is hypofluorous acid HOF because it shows only – 1 oxidation state. Which is due to its the smallest size among halogens & the highest electronegativity.

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Payal Gupta

Contributor-Level 10

Higher the E.N. difference between hydrogen and other atom then higher be the strength of intermolecular H-bond

Here, order of difference in E.N is

O - H > N – H > C - H

Hence, correct order of H bond strength is,

CH4 < HCN < NH3

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P
Payal Gupta

Contributor-Level 10

Leaching involves the given reaction,

4 A u ( s ) + 8 C N ( a q ) + 2 H 2 O ( a q ) + O 2 ( g ) 4 [ A u ( C N ) 2 ] ( a q ) + 4 O H ( a q )              

Here, O2 is required for formation of Au (l) cyanide complex but no complex in absence of O2.

2 [ A u ( C N ) 2 ] ( a q ) + Z n ( s ) [ Z n ( C N ) 4 ] 2 ( a q ) + 2 A u ( s )                

In above displacement reaction, Zn is oxidized.

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A
alok kumar singh

Contributor-Level 10

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V
Vishal Baghel

Contributor-Level 10

Answer: (a) A catalyst favours the formation of products

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