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An air bubble starts rising from the bottom of lake, it diameter is 3.6 mm at bottom and 4 mm at the surface. The depth of lake is 250 cm and temperature at surface is 40℃ . What is the temperature at the bottom of lake? (Given atmospheric pressure = 76 cm of Hg and g= 980 cm sec-1 neglect surface tension effect).

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SPECTROCHEMICAL SERIES:

We know that the Ligands which cause large degree of crystal filed splitting are termed as strong field ligands. and Ligands that cause onl...
Why [FeF6]3– is colourless whereas [CoF6]3– is coloured ?

[FeF 6 ] 3- is a Fe (III) complex hence [Ar] 3d 5 . F - is a weak field ligand and the complex is high spin: ...
Lux- Flood Acid-Base Concept:

The Lux-Flood concept is given by Lux in 1929 and supported by Flood in 1947. Lux-Flood concept is based on oxide ion acceptor and donor ten...
Structure of phosphorous trioxide (P4O6) and phosphorous pentaoxide (P4O10) :

Phosphorous is a pentavalent element hence show +3 and +5 oxidation state (d orbital presence).it form two oxide P 2 O 3 (+3) and P 2 O 5...
BACK BONDING-THEORY:

1. Definition of Back Bond: (1) Back bonding is a type of weaker π bond that is formed by sideways overlapping of filled orbital with empty...
What is Steric Inhibition in Resonance of SIR effect ?

SIR stand for Steric Inhibition in Resonance, means as per name steric means size, inhibition means some kind of hindrance, little hurdle...
CLOSE PACKING IN CRYSTALS (2D AND 3D):

The structure of crystalline solids is determined by packing of their constituents .In order to understand the packing of the constituen...
PERCENTAGE (%) AVAILABLE CHLORINE IN BLEACHING POWDER:

Bleaching powder is not a true compound but it is a mixed salt of calcium hypochlorite [Ca (OCl) 2 ].3H 2 O and basic calcium chloride [C...
OLEUM AND ITS PERCENTAGE(%) LABBELING

(1) Oleum can be represented by the formula ySO 3 .H 2 O where y is the total molar sulphur trioxide content .the value of y can be va...
Factor's affecting magnitude of crystal field stabilisation energy (CFSE): MAGNITUDE OF CFSE:

CRYSTAL FIELD STABILISATION ENERGY(CFSE) Magnitude of CFSE depends upon the following factors. (1) Nature of central metal cation: t...

STRUCTURE OF DIAMOND :

STRUCTURE OF DIAMOND :

DIAMOND :

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Dancing resonance

Dancing resonance

Sigma Resonance

BRIDGE BONDING

BRIDGE BONDING

MULTI-CENTERED BOND

STRUCTURE OF GRAPHITE:

STRUCTURE OF GRAPHITE:

GRAPHITE

STRUCTURE OF FULLERENCES :

STRUCTURE OF FULLERENCES :

FULLERENCES :

CLOSE PACKING:

CLOSE PACKING:

THE SOLID STATE

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