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Class 12th Chemistry

Which of the following is least likely to exist?

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alok kumar singh

Contributor-Level 10

HBrO2 has least existence

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Class 12th Chemistry

Which among the following compounds on reaction with methyl magnesium bromide followed by hydrolysis gives a tertiary alcohol?

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Vishal Baghel

Contributor-Level 10

Kindly consider the following figure

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Class 12th Chemistry

Major product of the given reaction is

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Vishal Baghel

Contributor-Level 10

Hydroboration oxidation : The reaction proceeds in an anti Markovnikov manner

=> No rearrangement is possible

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Class 12th Chemistry

Which of the following is an example of ferromagnetic substance?

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Vishal Baghel

Contributor-Level 10

Fe₃O₄ is a ferromagnetic substance

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Class 12th Chemistry

Which among the following is malachite?

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alok kumar singh

Contributor-Level 10

Malachite : CuCO3.Cu (OH)2

Azurite : 2CuCO3.Cu (OH)2

Cuprite : Cu₂O

Copper pyrite : Cu₂S.Fe₂S₃.

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Class 12th Chemistry

The correct relationship between edge length (a) and radius of atom (r) for BCC unit cell is

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Vishal Baghel

Contributor-Level 10

For BCC unit cell

$\sqrt[]{3} a = 4 r$

$a = \frac{4 r}{\sqrt[]{3}}$

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Class 12th 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

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