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9 months ago

Chemistry Hydrocarbons

The cis-alkenes are formed by the reduction of alkynes with
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Vishal Baghel

Contributor-Level 10

R C = C R ' + H 2 ? B a S O 4 P d / C

New answer posted

9 months ago

Chemistry Class 12th

Which of the following compounds is not an antacid?
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Vishal Baghel

Contributor-Level 10

Ranitidine, cimetidine and magnesium hydroxide are antacids.

Serotonin is a tranquilizers.

New answer posted

9 months ago

Chemistry Chemistry Classification of Elements and Periodicity in Properties

Among the following second ionisation energy is maximum for

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A
alok kumar singh

Contributor-Level 10

 Kindly go through the solution 

Element         

    V

Ti

Cr

Mn

IE2 (kJ/mol)

1414

1309

1592

1509

New answer posted

9 months ago

Chemistry Class 12th

Strongest reducing agent among the following is
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Vishal Baghel

Contributor-Level 10

Correct order of reducing character is

NH3 < PH3 < AsH3 < SbH3 < BiH3

New answer posted

9 months ago

Chemistry Chemistry Solutions

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

( P A o = 2 0 0 m m     H g ,     P B o = 1 0 0 m m     H g )

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Vishal Baghel

Contributor-Level 10

  P T = P A o X A + P B o X B

1 7 0 = 2 0 0 X A + 1 0 0 ( 1 − X A )

1 7 0 = 2 0 0 X A + 1 0 0 − 1 0 0 X A  

XA = 0.7                   XB = 0.3

Y A = P A o X A P T = 0 . 7 * 2 0 0 1 7 0 = 0 . 8 2 f

 

New answer posted

9 months ago

Chemistry Class 11th

+1 oxidation state is most stable for

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alok kumar singh

Contributor-Level 10

Due to inert pair effect Tl shows +1 oxidation state.

New answer posted

9 months ago

Chemistry Class 12th

Correct formula of calamine is
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Vishal Baghel

Contributor-Level 10

Calamine -> ZnCO3    

New answer posted

9 months ago

Chemistry Class 12th

Aldol condensation will take place in
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Vishal Baghel

Contributor-Level 10

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

New answer posted

9 months ago

Chemistry Class 11th

Select the correct statement among the following

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alok kumar singh

Contributor-Level 10

Suspension of slaked lime in water is known as milk of lime

Crude sodium chloride obtained by crystallisation of brine solution contains CaSO4, Na2SO4 and MgCl2

Beryllium salts are easily hydrolysed 

Gypsum : CaSO4 . 2H2O

Plaster of Paris : CaSO4 .1/2HO2

New answer posted

9 months ago

Chemistry Biomolecules

When glucose reacts with Br2 water, it gives
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Vishal Baghel

Contributor-Level 10

Kindly consider the following figure

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