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Formaldehyde:
Formaldehyde is the initial member of the aldehyde sequence. It is lie in green leaves of plants where its presence is supposed to be due to the reaction of with water in presence of sunlight and chlorophyll.
The valency of sulphur in sulphuric acid is: (1) 2 (2) 4 (3) 6 (4) 8 Ans: 6
An atom with atomic number 20 is most likely to combine chemically with the atom whose atomic number is: (1) 11 (2) 14 (3) 16 (4) 10 An
why the hydroxides of alkaline earth metals are less basic than alkali metals of the corresponding periods?
inductive effect of -OH and -CHO group
Explain What is the primary structure of a protein? Ans) The primary structure of protein is the linear sequence of amino acids that form the molecule. Modification of only s
name the compound LiH
Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 How To Develop A Ne
When a result of barium nitrate and a solution of copper(II) sulphate are mixed a chemical reaction produces solid barium sulphate which sinks to the bottom and a solution of coppe
1s 2 , 2s 2 , 2p 6 3s 1 shows configuration of: (1) Al 3+ in ground state (2) Ne in excited state (3) Mg + in excited state (4) None of these Ans: Mg + in
What is difference between silica used in TLC and HPLC column? TLC is called thin layer chromatography. The simple technique works on the principle of adsorption, where as HPLC i
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