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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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1. How do atoms reach Noble gas electronic configuration?
 
Atoms can combine by transferring valence from one atom to another or by sharing valence electrons to achieve the stable electronic configuration.
 
2. NaCl is insoluble in (\(CCl_4\)) but soluble in water. Write reason.
 
NaCl is an  compound that is soluble in polar solvents such as water but not non-polar solvents such as benzene (\(C_6H_6\)) or carbon tetrachloride (\(CCl_4\)). Because (\(CCl_4\)) is an  compound, hence it is insoluble in water.