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Energy difference is maximum between which of the consecutive energy levels in an atom? Ans) According to the line spectrum of hydrogen maximum energy is there between FIRST AND
20ml of water sample requires 15ml of 0.1mg/l sodium carbonate using phenolphthalein indicator. state the type of acidity and calculate the acidity
what is diagonal relationship? explain diagonal relationship between Li and M g, Be and Al?
Ionic compounds do not have: (1) Hard and brittle nature (2) High melting and boiling point (3) Directional properties (4) Soluble in polar solvents Ans: Direction
The number of unpaired electrons in carbon atom in excited state is: (1) One (2) Two (3) Three (4) Four Ans: Four
why must the mass relative of atom refer to atomic mass of C
general principle on metelurgy
sample exam questions
what is the significance of BR in ghee?
introduction to esters ,preparation, proprties, and their uses in daily life
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