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NANDANI KUMARI asked a question
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Deekchya Pandit asked a question

a)When silver nitrate comes in contact with skin, it is reduced to white color metallic silver.In most cases, a black stain appears due to formation of finely divided silver which has black color.

The black color is due to the decomposition of the Ag+ ion into Ag, silver. Silver nitrate will slowly decompose with the silver ion reverting to elemental silver. The microscopic particles of silver are so small that they absorb light instead of reflecting it, and so appear black, instead of silver....

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Puspak Sah asked a question

The difference between Gram atomic  mass and Gram atomic molecular are given below:

Gram atomic mass

Gram molecular mass

1.The mass of 6.023 x 1023 atoms of one mole atom of any element when expressed in terms of grams is called gram atomic mass.

1.The mass of 6.023 x 1023 molecules or 1 mole molecule of any substance expressed in grams is called gram molecular mass.

2.It is used to calculate the mass of an atom.2. It is used to calculate the mass of a molecule/molecular compound.
3. It is...
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Atith Adhikari asked a question

Yes, a physical quantity can have magnitude and direction but still be a scalar if it doesn't obey the vector addition. An example is Electric Current which has magnitude and a fixed direction, but it does not follow vector laws of addition.

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Rabin Kalikote asked a question

Riemann's green is a green pigment ZnO.CoO, which is obtained by heating a mixture of zinc oxide and cobalt nitrate or by the reaction of cobalt nitrate with either  or zinc sulphate.

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