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3 months ago

Chemistry Class 11th

C2H5OH + KMnO4  --> HC2H3O2 +MnO2 + KOH + H2O is the unbalanced equation if 5g of ethanol & excess amount of aqueous KMnO4 are reacted and 5.5g of HC2H3O2 result. What is the percent yield in the nearest integer? [Given: Atomic mass of H = 1, C = 12, O = 16]
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3 months ago

Chemistry Chemistry Electrochemistry

The purpose of salt bridge is to:
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V
Vishal Baghel

Contributor-Level 10

ion flow only   

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3 months ago

Chemistry Class 12th

The principle involved in paper chromatography is:
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V
Vishal Baghel

Contributor-Level 10

Partition   

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3 months ago

Chemistry Class 11th

Out of the following oxides of nitrogen how many of them are neutral oxides?

N2O, NO, N2O3 , NO2 , N2O4 , N2O5
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Vishal Baghel

Contributor-Level 10

N2O&NO   

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3 months ago

Chemistry Coordination Compounds

For which of the following complexes is the order of values of Δ0 correct?
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Vishal Baghel

Contributor-Level 10

3d => 4d => 5d CFSE increases for the same ligands.

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3 months ago

Chemistry Class 12th

Which of the following curves is in accordance with Freundlich adsorption isotherm?
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V
Vishal Baghel

Contributor-Level 10

Kindly consider the following figure

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3 months ago

Chemistry Class 11th

What is the formula and method of preparation of Hypophosphoric oxyacid?
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Vishal Baghel

Contributor-Level 10

Red phosphorus undergoes disproportionation on reaction with alkali to form H4P2O6 and PH3

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3 months ago

Chemistry Class 12th

Which of the following is an example of Stephen reaction?
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Vishal Baghel

Contributor-Level 10

Reduction of alkyl cyanide using SnCl2 and HCl is called as Stephen reduction reaction.

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3 months ago

Chemistry Hydrocarbons

Arrange the following on the increasing order of acidic hydrogen.
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Vishal Baghel

Contributor-Level 10

Order of electronegativity sp carbon > sp2 Carbon > sp3 carbon

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3 months ago

Chemistry Chemistry Hydrocarbon

The concentration-time dependence for a 1st order reaction is as shown in the graph: At which point on the curve, the rate of reaction is fastest?
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V
Vishal Baghel

Contributor-Level 10

1st order reaction is the fastest at the starting of the reaction then it decrease also you can see the slope which is equal to rate.

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