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Class 12th

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Class 12th Chemistry

Which of the following compounds is not an antacid?
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A
alok kumar singh

Contributor-Level 10

Ranitidine, cimetidine and magnesium hydroxide are antacids.

Serotonin is a tranquilizers.

New answer posted

6 months ago

Class 12th Chemistry Solutions

An ideal solution made by mixing two volatile components A and B. If the vapour pressure of solution is 170 mm Hg, then mole fraction of A in vapour phase is

(PA° = 200 mm Hg, PB° = 100 mm Hg)
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A
alok kumar singh

Contributor-Level 10

Kindly go through the solution 

 

New answer posted

6 months ago

Class 12th Chemistry

Correct formula of calamine is
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A
alok kumar singh

Contributor-Level 10

Kindly go thorugh the solution

Calamine->ZnCO3

New answer posted

6 months ago

Class 12th Chemistry

Aldol condensation will take place in

 
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A
alok kumar singh

Contributor-Level 10

The carbonyl compounds which contain at least two a-hydrogen will give aldol condensation.

New answer posted

6 months ago

Class 12th Chemistry

When glucose reacts with Br2 water, it gives
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A
alok kumar singh

Contributor-Level 10

Kindly go through the solution 

 

New answer posted

6 months ago

Class 12th Chemistry

Major product of the given reaction is

 
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A
alok kumar singh

Contributor-Level 10

Kindly go thorugh the solution

 

New answer posted

6 months ago

Class 12th Chemistry

Shape of XeF4 molecule is
0 Follower 1 View

A
alok kumar singh

Contributor-Level 10

Hybridisation = sp3d2

Shape – square planar

New answer posted

6 months ago

Class 12th Chemistry Electrochemistry

Select the ion of minimum limiting molar conductivity in water at 298 K.
0 Follower 2 Views

A
alok kumar singh

Contributor-Level 10

Ion

l°/S cm2 mol–1

OH–

199.1

SO2-

4

160.0

Cl–

76.3

CH3COO–

40.9

Order of limiting molar conductivity

OH- > SO42- > Cl- > CH3COO-

New answer posted

6 months ago

Class 12th Chemistry

Which among the following carboxylic acids has the highest pKa value?
0 Follower 7 Views

A
alok kumar singh

Contributor-Level 10

Higher the acidic strength, lower will be the value of pKa.

Therefore, Correct order of pKa is

CH3COOH > C6H5COOH > HCOOH > O2NCH2COOH

New answer posted

6 months ago

Class 12th Chemistry

Anionic species obtained on reaction of XeF2 with PF5 is
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A
alok kumar singh

Contributor-Level 10

XeF2 + PF5 ¾-> [XeF]+ [PF6]–

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