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8 months ago

Chemistry Chemistry NCERT Exemplar Solutions Class 12th Chapter Four

Arrange the following in increasing order of heir covalent character.

(A). CaF2                                         

(B). CaCl2

(C) CaBr2

(D) CaI2
0 Follower 5 Views

A
alok kumar singh

Contributor-Level 10

According to Fajan's rule,

Covalent character ∝ size of anion

∴CaF2<CaCl2<CaBr2<Cal2

New answer posted

8 months ago

Chemistry Surface Chemistry

The nature of charge on resulting colloidal particles when FeCl3 is added to excess of hot water is
0 Follower 4 Views

P
Payal Gupta

Contributor-Level 10

F e C l 3 → h y d r o l y s i s F e ( O H ) 3 ↓ → A d s o r p t i o n F e 3 + F e ( O H ) 3 | F e 3 + ( c o l l o i d a l     p a r t i c l e )

New answer posted

8 months ago

Chemistry Chemistry NCERT Exemplar Solutions Class 12th Chapter Twelve

Among the following the number of curves not in accordance with Freundlich adsorption isotherm is_________.
0 Follower 3 Views

V
Vishal Baghel

Contributor-Level 10

Kindly consider the following figure

New answer posted

8 months ago

Chemistry Chemistry Some Basic Concepts of Chemistry

Hemoglobin contains 0.34% of iron by mass. The number of Fe atoms in 3.3g of hemoglobin is (Given: Atomic mass of Fe is 56 u, NA = 6.022 * 1023 mol-1.)
0 Follower 6 Views

A
alok kumar singh

Contributor-Level 10

Number of Fe atoms = 0.34100*3.356*6.022*1023

= 1.206 * 1020

New answer posted

8 months ago

Chemistry Amines

Identify A in the following chemical reaction.
0 Follower 23 Views

P
Payal Gupta

Contributor-Level 10

Consider the following image

New answer posted

8 months ago

Chemistry Chemistry NCERT Exemplar Solutions Class 12th Chapter Twelve

Find out the major product for the below reaction.

 
0 Follower 7 Views

V
Vishal Baghel

Contributor-Level 10

Kindly consider the following figure

New answer posted

8 months ago

Chemistry Chemistry NCERT Exemplar Solutions Class 12th Chapter Twelve

Compound I is heated with Conc. HI to give a hydroxyl compound  A which is further heated with Zn dust to give compound B. Identify A and B.
0 Follower 3 Views

V
Vishal Baghel

Contributor-Level 10

Kindly consider the following figure

New answer posted

8 months ago

Chemistry Chemistry NCERT Exemplar Solutions Class 12th Chapter Twelve

The major product in given the reaction is
0 Follower 8 Views

V
Vishal Baghel

Contributor-Level 10

Kindly consider the following figure

New answer posted

8 months ago

Chemistry Hydrogen

Which of the following forms of hydrogen emits low energy β - particles?
0 Follower 3 Views

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Payal Gupta

Contributor-Level 10

Tritium is radioactive and it decays into He3 during emission of β-radiation

1T3 → 2He3 + -1e0

New answer posted

8 months ago

Chemistry Organic Chemistry - Some Basic Principles and Tech

Identify A in the given reaction.
0 Follower 35 Views

P
Payal Gupta

Contributor-Level 10

Since SOCl2 is used to covert aliphatic (R-OH) into chlorides. It will not react with aromatic alcohol

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