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During a flame test why is calcium''s flame not persistent, while that of strontium is?
Ans) Because it does not have many ions as compared to the Strontium. It is the ions which produce color.
reversible and irreversible cell with example
law of conservation of mass
Molecule in itself is electrically stable so it cant act as ligand So that it can acts as the negative and pasitive ligand.
Antioxidants: Antioxidants are the significant and essential food additives. These substances hold back the action of oxygen on the food and hence help in its preservation. Th
what is the principal of radiometric titration
What are the compounds having at least single chiral centre (asymmetric carbon atom)? Draw their structural formulae (line-bond structures) with all chiral centres marked by an ast
Which monomers can undergo free radical, cationic as well as anionic polymerisation with equal ease? CH2=CH2
K+O2=
Break point chlorination: It may be defined as the chlorination of water to such an extent that not only living organism but also other organic impurities in water are destroyed.
Till 20elememts write the no of electrons in outermost shell.if less than 4 then this is the valency otherwise subtract from 8
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