#title.periodic table, Chemistry

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characterstics of s block element

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Numerical, 150ml of a gas at 27C is heated to 77C at constant pressure.find...

150ml of a gas at 27C is heated to 77C at constant pressure.find the new volume of the gas.

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Properties of Nitrophenols:  O-Nitrophenol is a yellow in colour crystalline compound, whereas m- and p-isomers are colourless crystalline compounds. Isomer             orth

Total number of valence electron, The total number of valence electrons in ...

The total number of valence electrons in 4.2 gm N - 3   of ion is ( N A is the Avogadro's number): (1) 1.6N A                               (2) 3.2N A

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The maximum number of unpaired electron can be present in  d orbitals are: (1) 1        (2) 3         (3) 5       (4) 7 Ans: 5

A sub-shell l= 2 can take how many electrons, A sub-shell l= 2 can take how...

A sub-shell l= 2 can take how many electrons: (1) 3        (2) 10       (3) 5       (4) 6 Ans: 10

What is calcinations process, Q. What is Calcinations process? This is ...

Q. What is Calcinations process? This is fie method of heating the concentrated ore in a limited supply of air to a high temperature but under the fusion temperature. In calcin

Sodium aluminates is a better coagulates then alum, Q.   why is sodium alum...

Q.   why is sodium aluminates is a better coagulates then ferrous sulphates or alum? Ans. Sodium aluminates (NaAlO 2 ): It is better coagulant than FeSO 4 and alum because i

Which oxidation product is released from the cycle, What is the name of thi...

What is the name of this reaction cycle?  Which oxidation product is released from the cycle? What are the decreased products?   The reduced products A and B are reoxidiz

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