f block elements, Chemistry

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why f elememnts kept sepertaly in periodic table

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The valency of phosphorus, The valency of phosphorus in H3 PO 4   is: (...

The valency of phosphorus in H3 PO 4   is: (1) 2   (2) 5        (3) 4                           (4) 1 Ans: 5

An ionic compound is generally, An ionic compound is generally a : (1) ...

An ionic compound is generally a : (1) Good electrolyte (2)Weak electrolyte (3) Non-electrolyte (4) Neutral Ans:  Good electrolyte

Borazine, Reaction of ammonia with diborane at 475K gives a compound B3N3H6...

Reaction of ammonia with diborane at 475K gives a compound B3N3H6 known as borazine or borazole: Borazine is best prepared by reducing B-trichloroborazme with sodium borohy

The allylic carbons, The allylic carbons are indicated with an asterisk (*...

The allylic carbons are indicated with an asterisk (*).

REDOX REACTION HALF-REACTION, WRITE HALF-REACTION FOR THE REDOX Fe2+ + MnO...

WRITE HALF-REACTION FOR THE REDOX Fe2+ + MnO4- =Fe3+ + Mn2+

Antibiotics - chemistry in action, Antibiotics: A chemical substance ge...

Antibiotics: A chemical substance generated by or derived from living cells that is able of inhibiting the life procedures or even destroying micro-organism is known as Antibio

Uses of proteins - biomolecules, Uses of Proteins (a) Proteins constitu...

Uses of Proteins (a) Proteins constitute as necessary part of our food. Meat, eggs, fish, cheese offer proteins to human beings. (b) In textile: Casein (a milk protein) is u

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