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Chemistry Class 11th

Angular momentum of electron in 3^rd stationary orbit of hydrogen atom is

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Vishal Baghel

Contributor-Level 10

Orbital angular momentum = $\frac{n h}{2 π}$ $\frac{}{}$

= $\frac{3 h}{2 π} (? n = 3)$

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3 months ago

Chemistry Chemistry Hydrocarbon

When CaC2 reacts with H2O then, it gives

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alok kumar singh

Contributor-Level 10

CaC₂ + 2H₂O Ca (OH)2 + C2H2

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Chemistry Chemistry Some Basic Concepts of Chemistry

56g of CO contains (N_A) = Avagadro's No.)

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Vishal Baghel

Contributor-Level 10

Number of molecules $= \frac{w (g)}{M (g)} * N_{A}$

= $\frac{56}{28} * N_{A}$

= 2 N_A

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Chemistry Class 12th

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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Chemistry Class 12th

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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Chemistry Class 12th

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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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

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