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Why it called p-block elements?
How many unpaired electrons are present in Ni 2+ cation (atomic number = 28): (1) 0 (2) 2 (3) 4 (4) 6 Ans: 2
Classification of polymers - Thermoplastics These are the polymers that can be simply softened repeatedly while heated and hardened when cooled along with little change in the
Isoelectronic species are: (1) K + Cl - (2) Na + Cl - (3) Na Ar (4) Na + Ar Ans: K + Cl -
Types of substitution reactions According to the type of the nature of attacking species substitution reactions are categorized into following three categories, (A) Nucleoph
.
Classification of polymers - Linear polymers These are polymers where monomeric units are linked together to form linear sequential chain. These linear sequential polymers are
For the dissociation equilibrium of formic acid, HCO 2 H(aq) ↔ H + (aq) + HCO 2 - (aq), the acid dissociation constant at 298.15K has the value K a = 1.77 *10 -4 . (a) Find t
use and purpose 0
what are the equacyions of Dunstan''s test ???
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