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New answer posted

3 months ago

Chemistry Class 12th

Which among the following is malachite?
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A
alok kumar singh

Contributor-Level 10

Kindly go through the solution

 

New answer posted

3 months ago

Chemistry Solutions

If vapour pressure of two liquids A and B in pure state are 400 and 500 mm of Hg respectively then mole fraction of A in vapour phase of solution obtained by mixing equal moles of A and B is
0 Follower 1 View

A
alok kumar singh

Contributor-Level 10

Kindly go through the solution 

 

New answer posted

3 months ago

Chemistry Chemistry Solutions

Which of the following aqueous solution has highest boiling point?
0 Follower 2 Views

A
alok kumar singh

Contributor-Level 10

Higher the value of (ixM), higher will be the boiling point of solution.

Solute

Glucose

NaCl

K2SO4

K4 [Fe (N)6]

van't Hoff

factor (i)

1

2

3

5

New answer posted

3 months ago

Chemistry Class 12th

Packing efficiency of fcc lattice is
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A
alok kumar singh

Contributor-Level 10

For FCC lattice

Packing efficiency = 

 

New answer posted

3 months ago

Chemistry Class 12th

The first co-ordination number of Cs+ in CsCl lattice is
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A
alok kumar singh

Contributor-Level 10

CsCl has BCC structure in which Cl– is present at corners of cube and Cs+ at body centre

New answer posted

3 months ago

Chemistry Chemistry Electrochemistry

The tendency of an electrode to lose electron is known as
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A
alok kumar singh

Contributor-Level 10

Oxidation potential

 

New answer posted

3 months ago

Chemistry Class 12th

Zinc can be coated on iron to produce galvanized iron but the reverse is not possible. It is because
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A
alok kumar singh

Contributor-Level 10

Reduction potential values of

 

New answer posted

3 months ago

Chemistry Solid State

Potassium (K) has a bcc structure with nearest neighbor distance 4.52 A0 Its atomic weight is 39. Its density will be       
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A
alok kumar singh

Contributor-Level 10

Please find the attached solution:

 

New answer posted

3 months ago

Chemistry Class 11th

A metal ion M3+loses 3 electrons, its oxidation number will be

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A
alok kumar singh

Contributor-Level 10

Oxidation no. of a substance is proportional to the charge on it. In this case the charge is + 6 hence oxidation state will be +6

 

New answer posted

3 months ago

Chemistry Class 11th

For the given reaction

Which of the following is correct?
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A
alok kumar singh

Contributor-Level 10

In an exothermic reaction on decreasing temperature, reaction goes in the forward direction.

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