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The third line in Balmer series corresponds to an electronic transition between which Bohr's orbits in hydrogen: (1) 5 → 3 (2) 5 → 2 (3) 4→ 3
Which of the following is not isoelectronic : (1) Na + (2) Mg 2+ (3) O 2- (4) Cl - Ans:(d)Cl -
the value of plank''s constant
Condensation with formaldehyde - Miscellaneous reactions Phenol condenses with formaldehyde (excess) in presence of sodium hydroxide or acid (H + ) for about a week to form a p
Using the valence bond approach, reduce the shape and magnetic character of What are elastomers? Write the chemical equation to show the preparation ration of Buna-S.
HOW TOLUENE CAN BE PREPARED
Uses of Sucrose, Cane-sugar (1) Sucrose is used as a sweetening substance for several jams, syrups sweets, food preparations etc. (2) Sucrose is used in the making of sucros
How will you prepare carbolic acid from benzene
A filled or half-filled set of p or d -orbitals is spherically symmetric. Point out the species which has spherical symmetry: (1) Na (2) C
give me assigment of spontaneous and non spontaneous reactions
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