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ELECTROCHEMICAL CELLS Galvanic and electrolytic cells: The difference between potential of the two metals results in a potential difference (also called a electromotive fo
For a general reaction such as: The equilibrium constant is where the terms [A], [B],...strictly represent activities but are frequently approximated as co
Q. Explain about Preparation of diborane? Diborane can be prepared in almost quantitative yields by the reduction of boron Tricloride etherate (BF 3 , 0Et 2 ) with lithium alum
what is diagonal relationship? explain diagonal relationship between Li and M g, Be and Al?
Why a covalent bond is directional? Covalent bond is formed as a result of pairing of two electrons in atomic orbitals of two atoms. Bond then must lie along the direction of
Styrene rubber (GR-S or Buna-S or SBR or Ameripol): Styrene butadiene rubber (SBR) is prepared by the copolymerization of butadiene (75%) and styrene (25%) in an emulsion styrene
The electronic configuration 1s 2 , 2s 2 , 2p 1 x , 2p 1 z : (1) Oxygen (2) Nitrogen (3) Hydrogen (4) Fluorine Ans: Nitrogen
Which of the following conduct electricity in the fused state: (1) BeCl 2 (2) MgCl 2 (3) SrCl 2
the diagnal relationship in periodic table
The number of radial nodes of 3s and 2p orbitals are respectively : (1) 2, 0 (2) 0, 2 (3) 1, 2 (4) 2, 1 Ans: 2, 0
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