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The electron density between 1s and 2s orbital is:
(1) High
(2) Low
(3) Zero
(4)None of these
Ans:Zero
The high melting point and insolubility in organic solvents of sulphanilic acid are due to its ...... structure: (1) Simple ionic (2) Bipolar
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how to balance chemical eqations
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What are ferrites? Ferrites are ceramic compounds having trivalent metal having three valence electrons iron and oxide of divalent element i.e. metals having two free electrons
principle and application
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