P Block Elements

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New answer posted•a year ago

P Block Elements Class 12th

Strongest reducing agent among the following is

1 Views|Posted a year ago

Asked by Vishal Baghel

Answered by

Vishal Baghel | Contributor-Level 10

a year ago

Correct order of reducing character is

NH₃ < PH₃ < AsH₃ < SbH₃ < BiH₃

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New answer posted•a year ago

P Block Elements Class 12th

Correct formula of calamine is

8 Views|Posted a year ago

Asked by Vishal Baghel

Answered by

Vishal Baghel | Contributor-Level 10

a year ago

Calamine -> ZnCO₃

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New answer posted•a year ago

P Block Elements Class 12th

Shape of XeF₄ molecule is

3 Views|Posted a year ago

Asked by Vishal Baghel

Answered by

Vishal Baghel | Contributor-Level 10

a year ago

Hybridisation = sp³d²

Shape – square planar

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New answer posted•a year ago

P Block Elements Class 12th

Anionic species obtained on reaction of XeF₂ with PF₅ is

2 Views|Posted a year ago

Asked by Vishal Baghel

Answered by

Vishal Baghel | Contributor-Level 10

a year ago

$X e F_{2} + P F_{5} \to {[X e F]}^{+} {[P F_{6}]}^{-}$

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New answer posted•a year ago

P Block Elements Class 12th

The correct shape and hybridization for XeF2 are

1 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

XeF2 : Hybrid orbital = sigma bond + L.P

= 2 + 3

= 5 = sp3d

Shape will be linear

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New answer posted•a year ago

P Block Elements Class 12th

Which of the following is least likely to exist?

4 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

HBrO2 has least existence

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New answer posted•a year ago

P Block Elements Class 12th

In mildly alkaline medium, thiosulphate ion is oxidized by $M n O_{4}^{-}$  to “A”. The oxidation state of sulphur in ‘A’ is………….

2 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

$M n O_{4}^{-} + S_{2} O_{3}^{2 -} \overset{O H^{-}}{\to} M n O_{2} + S O_{4}^{2 -}$

O.S of S in $S O_{4}^{2 -} = + 6$

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New answer posted•a year ago

P Block Elements Class 12th

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.

**Assertion A : In TlI₃, isomorphous to CsI₃, the metal is present in +1 oxidation state.

Reason R : Tl metal has fourteen f electrons in the electronic configuration.

In the light of the above statements, choose the most appropriate answer from the options given below:**

18 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

Both (A) and (B) are correct but R is not correct explanation of A. In both oxidation state of metal is +1, also both have similar lattice structure.

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New answer posted•a year ago

P Block Elements Class 12th

Match List – I and List – II.

Choose the correct answer from the options given below:

3 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

2 C H_{3} C H_{2} C l \to_{e t h e r}^{2 N a} C_{2} H_{5} - C_{2} H_{5} + 2 N a C l (W u r t z R e a c t i o n)

2 C_{6} H_{5} C l \to_{e t h e r}^{2 N a} C_{6} H_{5} - C_{6} H_{5} + 2 N a C l (W i t t i n g R e a c t i o n)

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New answer posted•a year ago

P Block Elements Class 12th

Consider the following reaction:

A + alkali -> B(Major Product)

If B is an oxoacid of phosphorous with no P-H bond, then A is:

5 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

$P_{4} + 3 N a O H + 3 H_{2} O \to P H_{3} + 3 N a H_{2} P O_{2}$

$R e d P + a l k a l i \to \underset{(N o P - H b o n d)}{H_{4} P_{2} O_{6}}$

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